B. river water.
C. saltwater.
D. groundwater.
12. Water that flows downhill along Earth's surface is called
A. cycles.
B. rain.
C. runoff.
D. beach hydraulics.
13. Soil can best be described as the
A. third layer beneath the Earth's surface.
B. sandy bottom of the ocean's floor.
C. layer of bedrock four layers beneath the Earth's surface.
D. loose covering of weathered rocks and decaying organic matter.
14. A depression in the ground due to a cave collapse or acidic water dissolution of limestone is called a
A. sinkhole.
B. stalactite.
C. stalagmite.
D. cave.
15. When the water level of a stream or river exceeds its natural banks, it has reached its
A. capacity.
B. crest.
C. flood stage.
D. plateau.
16. Which of the following soil types is richest in organic material?
A. Yellow soil
B. Blue soil
C. Red soil
D. Dark-colored soil
17. Which of the following statements best describes chemical weathering?
A. It happens only in cool environments.
B. It always results in dome-shaped formations.
C. It's the process by which rocks and minerals undergo changes in their composition.
D. It's the type of weathering in which rocks and minerals break down into smaller pieces.
18. A divide as it relates to Earth science is the
A. elevated land area that separates one watershed from another.
B. rate of precipitation that exceeds infiltration.
C. largest river system possible.
D. stream that flows between two trees.
19. Which gas is a source of natural groundwater pollution?
A. Radon
B. Oxygen
C. Carbon
D. Hydrogen
20. Due to human demand because of its importance to life, the Earth's most precious resource is
End of exam
A. saltwater.
B. oil.
C. soil.
D. freshwater.
Question 11;
The answer is D. Infiltration means that the rainwater, after falling to the ground, seeps and percolates into the ground and fills the spaces in the permeable rocks. Some of the seeped water remains in the soil subsurface while the other water seeps deep into the ground and fills or replaces water in aquifers.
Question 12;
The answer is C. Surface runoff occurs when rainwater accumulates on the ground more than it can percolate into the ground. Th water then flows on the surface by gravity. Surface runoff causes soil erosion especially when the soil is not covered by vegetation. Surface runoff is severe on impervious rocks such as on tarmac and concrete in an urban center.
Question 13;
The answer is D. Soil (a major component of the pedosphere) is the topmost layers of the earth's crust where vegetation grows. The layer is composed of weathered rock and organic matter from dead living organisms. The soil is also teeming with organic life that is involved in nutrient cycles that support plant growth.
Question 14;
The answer is D. Limestone is mainly composed of Calcium Carbonate mineral. It is easily dissolved by acid in a chemical process. When rainwater falls it is slightly acidic due to the dissolving of atmospheric carbon dioxide to form carbonic acid. This may also be exacerbated by the presence of other gases in the air such as sulfur dioxide after a volcanic activity. Over many years of rainfall and slow but progressive dissolution of the limestone, a cave is formed in the ground. Stalactite and Stalagmite are speleothems formed in the cave.
Question 15;
The answer is C. The flood stage is the phase at which the river is considered to be breaking its banks as the water level goes above its highest banks. Communities at the lower stages of the river are the most affected by flooding when a river reaches flood stage. A tide gauge is used to determine the stages of flooding of a river.
Question 16;
The answer is D. Humus (of well refined dead organic matter) is what gives soil is a dark color because it is dark colored itself, hence intuitively, dark-colored soils have the most organic matter. It is this humus that enables the soil to hold water and nutrients hence significant in plant growth.
Question 17;
The answer is C. An example of chemical weathering is the limestone weathering as explained in question 14. warm, damp climates are best for chemical weathering because they are best for conditions for chemical reactions. Other by dissolution, other methods of chemical weathering of rick is by oxidation (especially rocks with iron mineral content), and hydrolysis.
Question 18;
The answer is A. This is the land between two adjacent valleys. There are 3 types of divides. A minor divide in which the two drainage rivers meet at a particular point before draining to the ocean or lake. A major divide is where the two river drainages never meet. A continental divide occur=s when the two drainage rivers flow into different oceans.
Question 19;
The answer is A. Radon gas is formed from the natural decay of radioactive elements such as uranium and thorium. They are found in small quantities in the underground and the gas is odorless and colorless hence easily undetectable. It is harmful in high concentrations especially when released as residues from the oil and gas industry.
Question 20;
The answer is D. Just as the common saying goes, water is life, so it goes without saying that life cannot be sustained without fresh water. This is because water is a significant requirement for basic life processes such as photosynthesis and cellular respiration.
THE ANSWER IS D. ALL OF THE ABOVE.
Answer:
European descent
Explanation:
Answer:
completely controlled the country’s resources
Explanation:
The white population possessed nearly all of the country’s wealth.
b. thousands of deaths due to small pox
c. the production of new types of agriculture
d. the African slave trade brought new laborers
(its not a because i tried it)
D. islands with high elevations and islands with low elevations
Answer:
The correct answer is D. The Polynesian Islands vary widely and can be divided into islands with high elevations and islands with low elevations.
Explanation:
Polynesia is the name given to a set of islands in the South Pacific Ocean. Extended over a huge ocean surface, it has a combined area of 298,000 km² and 4.5 million inhabitants. Its larger islands have volcanic origin and high elevations, and the smaller ones have coralline origin with low elevations. Given that the entire territory of Polynesia lies between the tropics, it has a very hot and humid equatorial or tropical climate.
(Points : 1)
People watching movies at home on DVDs
Health habits like smoking or overeating
A food preference for pork over other animal meat
Specific holidays like Christmas or Cinco de Mayo
Culture can impact economics through food preferences, holidays, and health habits.
Culture can have a significant impact on economics. One example is people's preferences for certain types of food, such as a food preference for pork over other animal meat. This can affect the demand for certain food products and the overall agricultural industry. Another example is specific holidays like Christmas or Cinco de Mayo, which can lead to increased consumer spending on gifts, decorations, and food.
Additionally, health habits like smoking or overeating can affect healthcare costs and productivity, thereby impacting the economy. Finally, people watching movies at home on DVDs can influence the entertainment industry and the demand for streaming services or physical media.
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Culture affects economics in various ways. Health habits like smoking or overeating can increase demand for certain products. Food preferences can influence agricultural production, and holidays can stimulate a substantial increase in economic activities, particularly in retail, transportation, and entertainment sectors.
The culture of a society invariably affects its economic behaviours and trends in several ways. For instance, health habits like smoking or overeating can create a demand for certain products or services, thereby impacting the economy. If there is a widespread culture of overeating, surges in demand for food products and related services can be observed.
Another example includes food preferences such as preference for pork over other animal meats. This preference can influence the production rates of pork, thus impacting agricultural and food sectors of the economy.
Lastly, specific holidays like Christmas or Cinco de Mayo also have major economic implications. Celebratory periods often result in increased consumption of goods and services and stimulate a significant increase in economic activities. For instance, during Christmas, there is a hike in the sales of gifts, Christmas trees, and decorations, and sectors like retail, transportation, and entertainment often witness a boom.
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