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Social Studies Grade 8 Worksheet (2017)

1. Which layer of the atmosphere is the coldest?
A. Thermosphere
B. Mesosphere
C. Stratosphere
D. Troposphere

2. Which is a limestone column that grows upward from the floor of a cave?
A. Stalactite
B. Stalagmite
C. Pillar
D. Erosion

3. Which is the most dangerous type of erosion?
A. Sheet erosion
B. Rill erosion
C. Gully erosion
D. Wind erosion

4. Which is the deposition of fertile soil in the desert by wind?
A. Sand dune
B. Barchan
C. Loess deposit
D. Screes

5. Which process transfers heat due to differences in density through gases?
A. Convection
B. Conduction
C. Radiation
D. Rainfall

6. What is the process where ice changes directly into water vapor?
A. Evaporation
B. Condensation
C. Transpiration
D. Sublimation

7. What occurs when moist air is forced to rise over mountains?
A. Relief rainfall
B. Convectional rainfall
C. Frontal rainfall

8. Which combination is correctly matched?
A. Folding - Rift Valley
B. Faulting - Anticline
C. Volcanism - Caldera
D. Folding - Batholiths

9. Which layer of the atmosphere contains a high concentration of ozone?
A. Stratosphere
B. Thermosphere
C. Troposphere
D. Mesosphere

10. Which fold mountains are found in Asia?
A. Himalayas
B. Atlas
C. Alps
D. Cape Ranges

11. Which refers to tertiary economic activities?
A. Processing raw material
B. Producing final goods
C. Extraction of resources
D. The provision of services

12. What is the major export product of Ethiopia?
A. Tea
B. Textile
C. Coffee
D. Cereal

13. The amount of goods that buyers are willing and able to buy is called:
A. Supply
B. Demand
C. Surplus
D. Stock

14. Which type of trade involves the purchase of goods manufactured domestically?
A. Entrepot
B. Import
C. Export
D. Local trade

15. Which is an example of internal trade?
A. Surplus
B. Shortage
C. Retail trade
D. Smokeless industry

16. The bending of the land surface due to internal forces is called:
A. Faulting
B. Folding
C. Volcanism
D. Earthquakes

17. The point on the Earth's surface directly above the focus of an earthquake is called:
A. Fissure
B. Equinox
C. Epicenter
D. Focus

18. Magma that reaches the surface of the Earth is called:
A. Magma
B. Lava
C. Fissure
D. Focus

19. What is a sand hill with a crescent moon shape?
A. Lava
B. Screes
C. Barchan
D. Rift Valley

20. Which is a depression between two parallel faults?
A. Fissure
B. Lava
C. Barchan
D. Rift Valley

21. What is the process of constructing stair-like structures along hillsides to reduce water flow?
A. Wildlife
B. Natural resources
C. Terracing
D. Sanctuary

22. What does planting new trees where none existed before mean?
A. Crop rotation
B. Strip cropping
C. Reforestation
D. Afforestation

23. Which of the following is NOT a factor influencing the utilization of natural resources?
A. Overpopulation
B. Pollution

24. What is a consequence of unwise utilization of natural resources?
A. Soil fertility
B. Crop rotation
C. Terracing
D. Water shortage

Please ensure the proper answer choices and question numbers are matched and corrected as necessary.

Answer :

Final answer:

The worksheet provides a series of questions primarily related to geography and environmental studies, covering topics like the atmosphere, erosion, and economic activities. Each question has a correct answer that clarifies important concepts in social studies. Understanding these concepts is valuable for students studying the intersections of environment, geography, and economy.


Explanation:

Understanding Questions from the Social Studies Worksheet

Let's go through the questions provided in the worksheet and identify the correct answers:

  1. Which layer of the atmosphere is the coldest?
    Answer: B/ Mesosphere. This layer is known for its decrease in temperature with altitude, reaching the coldest temperatures in the atmosphere.
  2. Which limestone column grows upward from the floor of the cave?
    Answer: B/ Stalagmite. Stalagmites form on the ground and grow upwards, while stalactites hang from the ceiling.
  3. Which form of erosion is the most dangerous?
    Answer: C/ Gully erosion. Gully erosion creates deep channels, making it particularly detrimental to landscapes.
  4. What is the deposition of fertile soil in a desert by wind called?
    Answer: C/ Loess deposit. Loess is wind-blown silt that can create fertile agricultural areas.
  5. What process involves the transfer of heat due to differences in density through gases?
    Answer: A/ Convection. Convection is a key process in weather and atmospheric phenomena.
  6. How does ice change directly into water vapor?
    Answer: A/ Sublimation. This process occurs without melting into liquid water first.
  7. Which type of rainfall occurs when moist air is forced to rise over mountains?
    Answer: A/ Relief rainfall. This type of precipitation occurs due to orographic lift.
  8. Which of the following combinations is correctly matched?
    Answer: C/ Volcanism - caldera. Calderas form after volcanic eruptions.
  9. Which layer contains a high concentration of Ozone?
    Answer: A/ Stratosphere. The ozone layer, which protects us from harmful UV radiation, is found in the stratosphere.
  10. Which fold mountains are found in Asia?
    Answer: A/ Himalayas. They are the highest mountain range in the world.
  11. What refers to tertiary economic activities?
    Answer: D/ The provision of services. Tertiary activities include all services provided to consumers.
  12. What is Ethiopia's major export product?
    Answer: C/ Coffee. Ethiopia is famous for its high-quality coffee.
  13. The amount of goods that buyers are willing to buy is called?
    Answer: B/ Demand. This term refers to consumer willingness to purchase goods at given prices.
  14. Which type of trade involves buying goods manufactured domestically?
    Answer: D/ Local trade. This involves transactions within a local area.
  15. What is one form of internal trade?
    Answer: C/ Retail trade. This refers to selling goods directly to consumers.
  16. What is the bending of the land surface due to internal forces called?
    Answer: B/ Folding. Folding occurs due to tectonic forces impacting the Earth's crust.
  17. What point on the Earth’s surface is directly above the focus of an earthquake?
    Answer: C/ Epicenter. The epicenter is critical in measuring and reporting earthquakes.
  18. What is magma that reaches the surface called?
    Answer: B/ Lava. Lava flows out of a volcano during an eruption.
  19. What is a sand hill that has a crescent moon shape?
    Answer: C/ Barchan. Barchan dunes are formed in arid environments with limited sand.
  20. What is the process of reforestation?
    Answer: B/ Afforestation. This involves planting trees in areas not previously forested.
  21. What involves constructing stair-like structures along hillside to reduce water flow?
    Answer: C/ Terracing. Terracing helps prevent soil erosion in hilly areas.
  22. What is meant by planting new trees where none existed before?
    Answer: D/ Afforestation. This is a critical practice for combating deforestation.
  23. What is a consequence of the unwise utilization of natural resources?
    Answer: D/ Water shortage. Unsustainable practices can lead to severe resource depletion.

Learn more about Atmospheric Layers and Environmental Concepts here:

https://brainly.com/question/14828602


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