The greenhouse effect is exacerbated by the use of fossil fuels.
Assume that the east coast of South America and the west coast of Africa are separated by an average distance of 4,500 km. Assume also that global positioning system (GPS) measurements indicate that these continents are now moving apart at a rate of 3.75 cm/year. If you could assume that this rate has been constant over geological time, how long ago were these two continents joined together as part of a supercontinent
Answer:
These continents joined together 120000000 years ago
Explanation:
The yield of the land refers to which of the following
Answer:
It refers to the amount of crop output from a given area of planted land.
please help to answer thus question asap!! please
sorry I don't know the answer
The zone of convergence between sub-tropical and polar air masses, and where frequent traveling storms take place, is along the:
Answer:
The zone of convergence between sub-tropical and polar air masses, and where frequent traveling storms take place, is along the sub-polar latitudes.
Explanation:
Convergence zones are meteorological systems that have a strong impact on global climate quality. These systems are formed by the interaction of various meteorological events that occur between different latitudes.
The convergence zone, which encompasses the subtropical and polar air masses, has an influence on the amount of storms that occur frequently. This convergence zone is located along subpolar latitudes, being strongly influenced by the humidity found in this region.
Which describes the boundary where earthquake activity occurs along rift valleys? divergent boundary in the ocean
Answer:
The correct answer is "Divergent boundary in the ocean ".
Explanation:
The so-called divergent limits when two oceanic plates move apart. Ultimately, divergent borders between hemispheres or continentals generate rifts that eventually generate rift valleys.Alongside oceanic flats seem to be the dynamic or energetic divergent bounds as well as they are frequently dubbed midfield furrows.So the preceding solution is the right one.
Cuales son los distintos tipos de productores en América Lantina?
Answer:
La región de América Latina y El Caribe cubre alrededor de 2050 m de ha y está conformada por 42 países con una población estimada de 505 m para el 2000. El tamaño de la región y la gran variedad de condiciones ecológicas favorables que presenta, sumadas a una densidad poblacional relativamente baja de 0,25 personas/ha y a tasas de urbanización que alcanzan el 75% han permitido el desarrollo y conservación de niveles extremadamente altos de biodiversidad. Según el Programa de las Naciones Unidas para el Medio Ambiente, (PNUMA)1, cinco de los diez países más ricos en términos de biodiversidad se encuentran en la LAC; además, la región presenta un 36% de los principales alimentos cultivados y especies industriales. La región más extensa de bosque tropical no fragmentado se encuentra en la Cuenca Amazónica, a esto se añade que la región posee un 28% del área forestal mundial - aproximadamente 1000 millones de ha para 1994.
Parte de esta abundancia surge de las condiciones climáticas relativamente favorables de la región. Esta cuenta con un 40 por ciento del total de áreas húmedas y con aproximadamente la mitad del total de los recursos hídricos renovables de los países en desarrollo, no obstante, presenta únicamente el cuatro por ciento de tierras áridas y semiáridas. Alrededor del 90% del territorio de la LAC corresponde a tierras húmedas y subhúmedas.
En 1999 la LAC poseía alrededor de 160 m de ha de tierra cultivada2, incluyendo 18 m de ha bajo riego. Esto representa únicamente el 18% del potencial estimado de la región3; además se estima que no más del 1% del agua disponible en la LAC se utiliza en la actualidad4. Aproximadamente 600 m de ha son tierras de pastoreo. La región es importante al nivel mundial en un sinnúmero de cultivos y por lo general obtiene rendimientos por encima del promedio de los países en desarrollo.
Con un promedio de US$ 3 940 del PIB per capita en 1998, la LAC es la región en desarrollo más rica del mundo y es también una de las que menos depende de la agricultura - tan sólo un 8% del PIB provenía de este sector en 1998. Puesto que el crecimiento del valor agregado agrícola es menor que para la industria o servicios, es muy probable que esta proporción continúe descendiendo. Más aún, la información nutricional de la FAO indica que la dieta promedio de la LAC contiene 120% de la necesidad energética mínima requerida al día5, mientras que el índice alimentario regional per cápita según la Comisión Económica para América Latina y el Caribe (CEPAL) experimentó un incremento del 15% durante el período 1980-19976.
A pesar de lo mencionado anteriormente, en la región existen serios problemas de equidad. No solamente los poderosos controlan una de las mayores proporciones de recursos del mundo7, sino que además existe un fuerte sesgo urbano. Según estimados de la CEPAL8 en 1997, el 54% de hogares rurales de la región se catalogó como pobre, en contraste con un 30% en las áreas urbanas. La extrema pobreza9 afectó al 31% de hogares rurales, y únicamente al 10% en las áreas urbanas. En total, se determinó que 47 m de habitantes rurales viven en la extrema pobreza y que 78 m están en la pobreza. Las cifras de pobreza internacionales varían considerablemente en los países estudiados en la región -entre el 2% de la población que percibe un ingreso menor a 1US$ diario en Uruguay (cifras de 1989) y el 40% que recibe esta misma cantidad tanto en Guatemala como en Honduras10. Los problemas de equidad son particularmente evidentes con respecto a la distribución de la tierra11.
Determine whether the sentences describe sedimentary rock, intrusive igneous rock, or both.
Answer:
left to right
Explanation:
Answer:
Sedimentary rocks: They are made of weather pieces of rocks
They are formed above earth's surface
Both: They have a diverse composition, they may contain many types of minerals.
They are solid at room temperatures.
Intrusive Igneous Rocks: They are made of molten rocks called magma.
They are formed in Earth's crust or mantle.
Explanation:
Sedimentary rocks:
first one is obvious, sedimentary rocks are made from weathering
second one is tricky, although both Sedimentary rocks and Igneous Rocks could potentially form above earth's surface, the category provided here is "Intrusive Igneous Rocks", which is formed under Earth's surface, only extrusive Igneous rocks are formed above Earth's surface.
Both:
They are both rocks not minerals so they definitely have diverse compositions.
And one of the factors of rocks is that they are solid in room temperature.
Intrusive Igneous Rocks:
Igneous rocks are made when magma cools down.
Earth's crust is the solid part and the most outer part of Earth's layer, Extrusive Igneous rocks happened to form here when magma cools down and solidifies, mantle is the second outer part of Earth, where some intrusive rocks are solidified while still in the magma.
Large megathrust earthquakes in the mountainous regions flanking the Mediterranean sea are generally due to ________.
Explanation:
the collision of the African Plate with Eurasia
necesito ayuda en esto, A lo largo de los últimos años, distintos actores han cuestionado a la globalización conformando un Movimiento Antiglobalización. Mencionar quienes conforman este movimiento y cuáles son sus críticas.
alguien lo sabe??
Answer:
El movimiento altersistema, y en ocasiones llamado como altermundismo o movimiento antiglobalización , es un amplio conjunto de movimientos sociales formado por activistas provenientes de distintas corrientes políticas, que a finales del siglo XX convergieron en la crítica social al proceso de globalización.
Existe cierta controversia sobre el término que define a este movimiento. Muchos de sus partidarios prefieren el término «altermundismo» o «alterglobalización», para evitar definirse por oposición, y porque el término «antiglobalización» daría una imagen imprecisa y negativa. El nombre altermundismo proviene precisamente del lema Otro mundo es posible, es un movimiento social heterogéneo compuesto por simpatizantes de muy variados perfiles, que proponen que la globalización y el desarrollo humano se basen en prioridad en los valores sociales y ambientales, en oposición a quienes los centran en el neoliberalismo económico, nacido en el Foro Social Mundial,[1] que cada año reúne a movimientos sociales de cientos de países del mundo.
El antiglobalismo acusa al actual proceso de globalización de beneficiar a las grandes multinacionales y a los países más ricos[2] acentuando la precarización del trabajo, y consolidando un modelo de desarrollo económico injusto e insostenible. También lo acusa de socavar la capacidad democrática de los Estados, entre otros aspectos negativos.[3][4][5]
what are the main causes earth tremors? Please help
Answer:
The tectonic plates are always slowly moving, but they get stuck at their edges due to friction. When the stress on the edge overcomes the friction, there is an earthquake that releases energy in waves that travel through the earth's crust and cause the shaking that we feel.
which of the following is not a continental plate? *
1 point
(a) North Ameica
(b) Africa
(c)Pacific plate
(d) Eurasian Plate
Which of the following does does the Theory of plate tectonics seeks to explain? *
1 point
(a) the shape of the planets
(b) The shape of the ocean
(c) the shape and arrangement of the planets and Oceans
(d) All of the above
Which minerals are common on the continental crust? *
1 point
(a) silica and magnesium
(b) silica and aluminium
(c) silica and maganese
(d) silica and argon
Trees which shed their leaves during dry period and grow new ones during rainy season are *
1 point
(1) deciduous
(b) Succulent
(c) Aacia
(d)Plank buttress
Which type of biome is described in this statement? " The weather is hot and humid all year round and there is plenty of rainfall. The trees are very large and grow in layers". *
1 point
(a) Tropical Rainforest
(b) Savanna
(c) dry forest
(d) Taiga
Which of the following is not a type of Biome found in the Caribbean? *
1 point
(a) Savanna Grassland
(b) Rain forest
(c) mangrove swamps
(d) Taiga
Which of the following represents a ratio scale? *
1 point
(a) 1 metre represents 700 metres
(b) 1 : 63000
(c)1/63000
(d)1 cm represents 700, 000
Answer:
b d a b d c b
Explanation:
because the consist of the weather climate change
Why is it unlikely for stable life to develop over the first few hundred million years of Earth's history
Answer:
In simple words, there existed no living on Earth for the first few million years since the environment was unsuitable for life. The original atmosphere of the Earth had a lot of water vapor but practically little oxygen. Volcanic activity blasted substances into the atmosphere such as nitrogen, carbon dioxide, hydrogen, and water vapor, but no pure oxygenation.
When comparing groups of stars, which group has relatively low
luminosities and temperatures?
Answer: Red dwarfs
Explanation:
Red dwarfs are thought to be the coolest star out of the rest. They are also the smallest. Because they are so cool, their luminosity is low as well on account of the fact that relatively speaking, the fusion taking place on their surface is little.
Red dwarfs are the most numerous star in the universe and the most numerous in the Milky Way galaxy as well. We just can't see them with out naked eyes because of their low luminosities.
1-cite evidencias de que a milhoes de anos areas pode ter havido um supercontinente:o Pageia (obs:nao chute a resposta e nao Como que a resposta erranda pelo Amor de Deus)
Answer:
Pangea es el supercontinente que existió hace 250 a 210 millones de años, desde que se originaron todos los continentes actuales. Pangea estaba rodeada por un océano, Panthalassa. Pangea era una gran masa de tierra que finalmente se rompió por la tectónica de placas.
Durante el Jurásico, Pangea comenzó a desintegrarse. Primero, se formó una brecha de tres brazos entre lo que se convertiría en los continentes de África, América del Sur y América del Norte. La actividad volcánica creó una cuenca que luego se convertiría en el Océano Atlántico. Pangea se dividió primero en dos paleocontinentes, Laurasia y Gondwana (América del Sur siguió siendo parte de Gondwana durante algún tiempo). Después de eso, ambos paleocontinentes se dividieron aún más en los continentes de hoy.
Which of the following
statement is true according
to the graphic in regards to
the spread of Islam?
A. Islam spread into Africa and Europe.
B. Islam was isolated in the Saudi Arabian
peninsula.
C. The spread of Islam only occurred from
622-632 CE.
D. The spread of Islam began in West
Africa first.
Square ABCD and isosceles triangle BUC are drawn to create trapezoid AUCD. Square A B C D and triangle B U C are attached at side B C to create trapezoid A U C D. What is the measure of angle DCU? 45o 90o 120o 135o
Answer:
135°
Explanation:
The measure of angle DCU is 135°.
This is because angle DCU is the combination of a square and a triangle.
One of the angles of the square is 90° + 45° which is the value of one of the angles of an isosceles triangle.
= 135°
Assuming Square ABCD and isosceles triangle BUC are drawn to create trapezoid AUCD. The measure of angle DCU is 135°.
Measure of angle DCUΔDCB=90°
ΔCBU=90°
Hence:
ΔBCU=ΔBUC
ΔBCU=(180°-90°)/2
ΔBCU=45°
Measure of angle DCU:
ΔDCU=ΔDCB+ΔBCU
ΔDCU=90°+45°
ΔDCU=135°
Inconclusion the measure of angle DCU is 135°.
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How many times
more likely is a hurricane to strike
Broward County than Okaloosa
County?
Which property of a mineral is identified
by the mark it leaves on a ceramic plate?
A. streak
B. luster
C. density
D. hardness
15) What continent is touching the eastern border of Europe?
A. North America
C Africa
B. Australia
D. Asia
Answer:
the correct answer is D. Asia
Explanation:
your welcome
Can hydrogen Bonds form among hydrogen chloride molecules? Why?
Explanation:
Despite its electronegativity, size of a chlorine atom is larger and hence, the electron density is low. So, HCl does not have hydrogen bonding but, HF,NH3,H2O shows hydrogen bonding.The hydrogen bond does not form because the chlorine atom is too large. Despite chlorine's high electronegativity its big size lowers the negative charge density and it is not enough to attract a hydrogen atom in a stable phase. Nevertheless, there is a small dipole-dipole attraction between adjacent HCL molecules.hope it helps.stay safe healthy and happy...what are the characteristics of communal societes
Answer:
Answer to the following question is as follows;
Explanation:
Communal community, cooperation association created on the basis of common interests and prioritising the needs of the community over those of the individual. Private property ownership is typically prohibited in communal communities, and members' interaction with the rest of society is often limited.
Analise as alternativas sobre as características dos continentes terrestres e marque a única alternativa INCORRETA: * a) A Asia é o continente mais extenso, além de abrigar o maior contingente populacional. b) O continente americano é subdividido em América do Norte, América Central e América do Sul. c) A Oceania é o menor continente terrestre. d) Os países da Europa apresentam os mais elevados Índices de Desenvolvimento Humano (IDH) do planeta. e) A Africa apresenta diversos problemas socioeconômicos (subnutrição, desemprego, alta taxa mortalidade infantil, etc.), sendo o único continente com baixo padrão de vida.
Answer:
La opción incorrecta es D. Si bien es cierto que África presenta diversos problemas socioeconómicos, no es cierto que se trata del único continente con bajo nivel de vida.
Así, si bien la mayoría de los países africanos están sumidos en la pobreza, esta condición se encuentra en todos los continentes, con ejemplos como Ucrania o Moldavia en Europa, Haití o El Salvador en América, Afganistán o Birmania en Asia, o las Islas Salomón en Oceanía.
Which three of the following statements are probably true? Use the information in the three maps below (the World Climate Region map, the World Bioregions map, and the World Population map) and their legends to guide you.
a. Evergreen forests are associated with a steppe-type climate.
b. The tundra bioregion is found only in the polar regions.
c. Continental climates are found in the Northern Hemisphere, but not the Southern Hemisphere.
d. Climate and bioregion play a significant role in human settlement patterns.
e. There is a strong correlation, and possibly even a causal relationship, between climate and bioregion.
Answer:c
Explanation:
Answer:
- Continental climates are found in the Northern Hemisphere, but not the Southern Hemisphere.
- Climate and bioregion play a significant role in human settlement patterns.
- There is a strong correlation, and possibly even a causal relationship, between climate and bioregion.
Explanation:
- Climate plays an important role in the location of plants and animals that in turn are crucial components of a bioregion.
- The Population Density map shows human settlement patterns. These patterns are consistent with the patterns on both the climate and bioregion maps.
- The color associated with the continental climate is blue. The color blue is found in the Northern Hemisphere but not the Southern Hemisphere.
Explain the impact of human activities on soil and suggest measures to conserve it ??
Answer:
These include land use change, land management, land degradation, soil sealing, and mining. The intensity of land use also has a great impact on soils. Soils are also subject to indirect impacts arising from human activity, such as acid deposition (for example, sulphur and nitrogen) and heavy metal pollution
List out three methods of soil conservation
Following methods are normally adopted for conserving soil:
Afforestation: One of the best ways to conserve soil is to increase the area under forests. ...
Checking Overgrazing: ...
Constructing Dams: ...
Changing Agricultural Practices: ...
Explanation:
pls mark me as brainlist
The impact of human activities on soil are that some human activities have clear direct impacts.
These include land use change, land management, land degradation, soil sealing, and mining. The intensity of land use also has a great impact on soils.
Measures to conserve it include crop rotation, cover crops, conservation tillage and planted windbreaks
What is land degradation?Land degradation is a process in which the value of the biophysical environment is affected by a combination of human-induced processes acting upon the land.
It is viewed as any change or disturbance to the land perceived to be deleterious or undesirable.
Natural hazards are excluded as a cause; however human activities can indirectly affect phenomena such as floods and bush fires.
It is estimated that up to 4% of the world's agricultural land is seriously degraded.
What is crop rotation?Crop rotation is the practice of growing a series of different types of crops in the same area across a sequence of growing seasons. It reduces reliance on one set of nutrients, pest and weed pressure, and the probability of developing resistant pests and weeds.
A well-designed crop rotation can reduce the need for synthetic fertilizers and herbicides by better using ecosystem services from a diverse set of crops. Additionally, crop rotations can improve soil structure and organic matter, which reduces erosion and increases farm system resilience.
To learn more about crop rotation here,
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In what direction are the winds swirling around the
location you identified?
describe three measures that can be used to solve water shortages
Answer:
Rainwater harvesting and recycled wastewater also allow to reduce scarcity and ease pressures on groundwater and other natural water bodies. Groundwater recharge, that allows water moving from surface water to groundwater, is a well-known process to prevent water scarcity.
Explanation:
The Big Rock Mining company decides to build a mine shaft in South Africa that extends 3.5 km beneath Earth's surface. What approximate temperature would a person experience at the bottom of the mine shaft
Answer:
88°C
Explanation:
The approximate temperature that a person would most likely experience at the bottom of the mine shaft is 88°C
Using/applying the average accepted value for Geothermal gradient
Mining is a Job that associated with a lot of hazards, in order to eliminate these hazards to the barest minimum. The temperatures that the miners are exposed to are very important factors to be considered during the process mining
Advantages of living close to a river delta
Answer:
-Absorb runoff from both floods and storms
-Filters water as it slowly makes its way through the distributary network.
-Moderating water temperature
-Providing fertile soils with high rate of plant growth
-Richer agricultural harvests
Explanation:
which of the following are major elements of a high quailty of life
Ocean water is sinking at the North Atlantic buoy station what could be the reason that the water sinks
Answer:
The water is sinking because when the plates in the ocean move it takes the water under the ocean floor.
Explanation:
