This document contains 20 multiple choice questions about topics in earth science including the water cycle, renewable and non-renewable resources, mining, and the connections between the biosphere, atmosphere, hydrosphere, and geosphere. The questions assess understanding of key concepts like how fresh water is essential for life, examples of water pollution, the formation of granite through cooling magma, and how the water cycle continuously renews Earth's water supply.

1. EARTH SCIENCE
Practice Exam
Republic of the Philippines
Department of Education
REGION VII (Central Visayas)
Schools Division of Bais City

2. Which of the following is an example of a
connection between BIOsphere and ATMOsphere?
A. Animals eat plants.
B. Animals drink water.
C. Animals live in caves.
D.Plants produce oxygen.

3. Why is fresh water important for life on Earth?
A. The biosphere needs water.
B. We need water to grow food.
C. Without fresh water sources people will get
sick and die.
D.All of the above.

4. Which of the following is a type of water
pollution?
A. Fish waste
B. Oil spill
C. People swimming in the ocean
D. Sand from the beach

5. You encounter a clear mineral in a vein within
a rock, which your instructor tells you is either
quartz, calcite, gypsum or talc. You can scratch
it with your pocketknife, but not your
fingernail. Which is it?
A. Calcite C. Quartz
B. Gypsum D. Talc

6. Which processes formed granite, an igneous
rock, that is mined in Vermont?
A. Compaction and cementation of sediments
B. Cooling and solidification of magma
C. Uplift and weathering of bedrock
D. Application of heat and pressure to shale

7. What characteristics of the planet, Earth, is
essential to the survival of living organisms?
A. Earth has just one orbiting moon.
B. Earth has abundant available water.
C. Earth orbits the Sun once every 365 days.
D. Earth rotates on its axis once every 24
hours.

8. What is an example of a connection between
ATMOsphere and GEOsphere?
A. Mountains
B. Nitrogen
C. Volcanic Eruptions release gas
D. Water

9. Which of the following is NOT a requirement for life to
exist on a planet?
A.Presence of water.
B.Just the right period of rotation.
C.Just the right distance from the Sun.
D.Just the right amount of gases in the
atmosphere.

10. What is an example of a connection between
ATMOsphere and HYDROsphere?
A. Lakes C. Rivers
B. Rain D. Rocks

11. How does geothermal energy work?
A. Uses water from the Earth
B. Uses potential energy
C. Uses heat from the core of Earth
D. Uses heat from atmosphere

12. Which of the following is an example of a
connection between HYDROsphere and
GEOsphere?
A. Fish swimming in water.
B. Boats transporting goods.
C. Waves eroding rocks on beach.
D. Water evaporating to produce clouds.

13. Which of the following categories does tidal
power fall into?
A. Hydrothermal
B. Hydropower
C. Solar
D. Wind

14. Which of the following is the process of land
becoming a desert because there are no plants
to help hold and there’s no water cycle?
A. Desertification C. Habitat
B. Erosion D. Soil Conservation

15. Which of the following is one of the reasons
for water depletion?
A. Increase in clouds
B. Overuse
C. Taking short showers
D. Too much rain

16. What of the following is NOT an idea of solid
waste management?
A. Proper disposal
B. Storage and collection
C. Stop waste generation
D. Control of waste generation

17. How do we return land used for mining to its
original state?
A. By pollution C. By recycling
B. By reclamation D. By strip mining

18. Which of the following cause harm to human
health?
A. Organic farming C. Using of pesticides
B. Protecting forests D. Using solar vehicles

19. What is one problem that mining may create?
A. Mineral deposits C. Reclamation
B. Ore D. Water pollution

20. Which among the following is the most serious
environmental effect posed by hazardous
waste?
A. Air pollution
B. Contamination of groundwater
C. Increased used of land for landfills
D. None of these

21. Which of the following is TRUE about fossil
fuels?
A. They are renewable resources.
B. They are formed over the course of ten
years.
C. They are the remains of once-living
organisms.
D. They are found within the top layers of the
Earth’s crust.

22. Which is not a form of source reduction?
A. Printing double sided instead of one sided
B. Purchasing the digital form of music instead
of CDs
C. Replacing plastic mugs with disposable
paper cups
D. Substituting non-toxic material from
something toxic

23. What are the group of minerals people
commonly mine?
A. Gemstones and non-metallic
B. Metals and gems
C. Metallic and non-metallic
D. Silica and calcite

24. How can farmers prevent/slow down soil
erosion?
A. Cover their crops with a tarp
B. Cut down all of the trees and crops
C. Water the soil every day to weigh it down
D. Plant crops and plants to hold the soil in
place

25. What percent of water on earth is fresh water
that is available for human use?
A. 1% C. 75%
B. 3% D. 97%

26. Which among the following is comparatively
cleaner fuel?
A. Coal C. Natural Gas
B. Marble D. Petroleum

27. Which common mineral is used to keep time in
watches?
A. Copper C. Quartz
B. Lithium D. Uranium

28. How is Earth’s water supply being continuously
renewed?
A. Through global warming
B. Through oceans
C. Through photosynthesis
D. Through the water cycle

29. If a mineral deposit is located deep within the
Earth, what mining method is used to mine the
deposit?
A. Explosives C. Surface Mining
B. Quarrying D. Underground Mining

30. Lithium is used in which of these products?
A. Clocks C. Pottery
B. Batteries D. Jewelry

31. Why do fossil fuels generate more power than
wood for use in machines, for example?
A. Fossil fuels are drier
B. Fossil fuels are easier to light
C. Fossil fuels are easier to transport
D. Fossil fuels have a higher concentration of
carbon and hydrogen