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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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...tipos de escalas sismicas
¿Por qué es importante la red geográfica?
Answer:
Por qué sirven para ubicarse en la superficie terrestre. Es fundamental para la elaboración de mapas y es la base del GPS.
Explanation:
espero haber ayudado
A recent study indicates that a certain drug may be useful in treating a certain disease. Which of these questions is least likely to be asked by someone critically thinking about the study? How many patients tested the drug? How long did patients take the drug? How much did patients’ conditions improve with the drug? How much does the drug cost?
How did Japan's geography help to control its territory and keep European traders out before the mid 1800s?
While geography may be split between physical and human geography, what are some examples you can think of that would include utilizing both to answer scientific questions
Answer:
Physical and human geography can be used to answer scientific questions such as:
"How to reduce deforestation related to environmental exploration?"
"How can the creation of borders interfere with social classes?"
"How to limit urban expansion?"
"How to reduce the problems caused by the rural exodus?"
Explanation:
Scientific issues are, most of the time, aimed at explaining and solving problems related to the physical environment and the way in which human beings are inserted in this space. It is because of these goals that physical and human geography is so important to the resolution of scientific issues, as they directly refer to the natural elements of terrestrial space and the interaction of this space with humanity. Thus, the junction between science, physical and human geography, can be useful to answer questions such as: political instability, population expansion and decrease, environmental issues, atmospheric phenomena, environmental exploration, among others.
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
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:
Students measured the temp of water at different depths in Lake Michigan and found the temperatures varied. What is the independent variable?
Answer:
Depth of lake
Explanation:
In simple words, The independent variable can be understood as the feature of a psychological investigation which is regulated or modified by investigators rather than by other factors. For instance, learning would have been the independent variable inside an investigation of the impact of studying on test results.
Thus, we can conclude that in the given case, depth of lake is the independent variable.
Major currents circulate warm and cold ocean water between the
poles and the equator. Compare and contrast the major ocean currents north and south of the equator.
Answer:
Explanation:Find this emogy and how many they are?
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.
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.
Although freshwater biomes cover less than 1% of the Earth's surface, they are important because ________.
Explanation:
we depend on them for drinking water
they are home to lots of species
they are the source of our irrigation for agriculture
All of the above are reasons why freshwater biomes are important.
Although freshwater biomes cover less than 1% of the Earth's surface, they are important because fresh water is the lifeblood of our planet they are the source of our irrigation for agriculture , are home to lots of species, we humans depend on them for drinking.
What is need to conserve freshwater?Fresh water is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids.
Fresh water is vital to life and yet it is a finite resource. Although critical to natural and human communities, fresh water is threatened by a myriad of forces including overdevelopment, polluted runoff and global warming.
With this in mind, WWF partners with communities, businesses and others to decrease pollution, increase water efficiency and protect natural areas to ensure enough clean water exists to conserve wildlife and provide a healthy future for all.
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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.
PLZ help me label this
Answer:
i did not known answers to your answer and I will be mather chosen
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.
(a) What is irrigation agriculture?
(b) Discuss three factors which favour
irrigation agriculture in Nile Basin,
(c) List two importance and two
problems of irrigation.
(a) Describe the methods of irrigation
agriculture in either the Nile valley or the
Niger valley, (b) Give reasons for the
irrigation agriculture in any one of the
river valleys. (c) Discuss the problems
associated with irrigation agriculture in
the river valley you have chosen above
Explanation:
Basin or flooding mathod - involves the seasonal flooding of the nearby lands in the Nile Valley during which the flood water is trapped and cannot flow back into the Nile Valley
(ii) Perennial Method - involves the damming of rivers to create artificial reservoirs which can supply water to irrigation canals at any time of the year
(iii) The Shaduf Method - The oldest method during which farmers collect water from river channel, either with a bucket or a water bag, and pour it on their farms.
(b) Reasons for irrigation agriculture in Nile valley are:
(i) To supply water to the soil as little or no rainfall is experienced around these areas
(ii) To fight drought as Egypt experiences desert climate
(iii) To produce crops all year round.
(c) Problems associated with irrigation agriculture in the Nile Valley are:
(i) There is the problem of fluctuation in the level of water used for irrigation purposes
(ii) Presence of excess of mineral salt like sodium which are injurious to plant growth
(iii) Over-flooding could be disastrous
(iv) Construction of many dams disturbs normal flow of water.
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]
Mention three sources of electricity
Answer:
natural gas
coal
nuclear
In decline in ownership of all four types of gadgets reflects problems in the economy, which statement can best be inferred from the chart above?
Answer: D. The economy was struggling in much of 2009.
Explanation:
In 2009, the ownership of mp3 players seemed to dip from April to September and only recovered afterwards.
Laptop computer ownership may not have decreased but stopped growing and remained the same in the same period. Desktop computer decreased in ownership and even Cellphone ownership decreased as well.
This means that all four gadgets were affected in 2009 in a negative manner which means that the economy struggled in that time period in 2009.
The most likely reason that this building in the tundra environment has a failed foundation is that:
Answer:
Question: If the diagram below is in the Northern Hemisphere outside of the tropics, the left side of the diagram is SUNLIGHT High Angle In the diagram below, the understory is at The most likely reason that this building in the tundra environment has a failed foundation is that a twind storm has detached the building ...
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:
Why is there different time zones in different parts of the world?
What's the time zone in your country?
please help to answer thus question asap!! please
sorry I don't know the answer
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.
how can a culutre affect economics
Answer: Culture is found to affect economic performance through two channels; cultural traits that stimulate individual motivation, and traits that develop social capital in the population. The analysis controls for factors commonly recognized in the economic growth literature.
Please help ASAP!
Which of the 4 strategies is best and why?
1) Curved sea walls
2)Rock Armour
3)Beach replenishment
4)Nothing Coastal Management
Answer:
which subject is this from
Explanation:
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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:
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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.
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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.
