Earth's Resources

Which of the following natural resources need to be conserved strictly because it will take a very long time to produce and accumulate them?

• wood

• coal

• water

• rice

You are asked by your mother to buy table salt in the store near your house. What is the best thing to do to save energy?

• Walk

• Ride a motorcycle

• Wait for a public vehicle outside

• Ask your cousin for free lift

Our environment has many bodies of water and landforms. The things that we take and use from the environment to survive are called _______.

• raw materials

• chemical energy

• natural resources

• rocks and minerals

Resources that can be replaced after using them again and again are called _______.

• nonrenewable

• recyclable

• renewable

• reusable

The Maria Cristina Falls in Iligan City generates energy from the flow of water. What do you call this energy resource?

• Biomass

• Geothermal

• Hydropower

• Solar

Which of the following is TRUE about natural resources?

• Natural resources are created by humans.

• Natural resources are used by humans only.

• Natural resources are produced through scientific experiments.

• Natural resources exist in nature and sustain the needs of all living things.

Plants and animals are renewable resources because they can be replaced easily. If coal, crude oil, and natural gas are formed from decayed plants and animals, why are they considered as nonrenewable resources?

• Coal, crude oil, and natural gas are very expensive.

• We need to import them from other countries.

• It will take a very long time to produce them.

• Extracting them from the depths of the Earth is very dangerous.

Which of the following list includes ALL renewable energy resources?

• Natural gas, crude oil, biomass

• Solar, coal, natural gas

• Crude oil, hydropower, wind

• Hydropower, solar, geothermal

Materials or natural resources that take millions of years to be replenished once consumed entirely are called _____________.

• nonrenewable

• recyclable

• renewable

• reusable

The manner of using natural resources without being completely used up or destroyed to maintain ecological balance is referred to as ______________.

• availability

• biodiversity

• productivity

• sustainability