Science 2 Quarter 4 Week 1: Natural Resources and Sunlight

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Why is sunlight considered a natural resource?

It is only used for recreational purposes.

It is easy to measure and quantify.

It is not essential for living things.

It provides energy for all life on Earth. (correct)

What percentage of Earth's water is freshwater?

3% (correct)

1%

97%

75%

How are solar panels beneficial in capturing natural resources?

They waste energy instead of conserving it.

They deplete the ozone layer.

They emit harmful gases into the atmosphere.

They capture sunlight to produce energy. (correct)

Why is it important to save and not waste freshwater?

Because only a small percentage of water on Earth is accessible as freshwater. Signup and view all the answers

What role does air play in generating power?

Air contains oxygen which can be used to generate power. Signup and view all the answers

How can individuals contribute to reducing air pollution?

By considering the causes of air pollution and taking steps to reduce them. Signup and view all the answers

What is a disadvantage of using oil as an energy source?

Oil produces a lot of waste when burned Signup and view all the answers

What type of natural resource is coal classified as?

Non-renewable Signup and view all the answers

Why is uranium considered a non-renewable resource?

Uranium is not replaced in nature on a human timescale Signup and view all the answers

How does turning off the tap when brushing your teeth help save water?

Saves water used in rivers Signup and view all the answers

How does natural gas differ from wind and sunshine as an energy source?

Natural gas will eventually run out Signup and view all the answers

What is the primary environmental impact of reducing food wastage?

Reduced greenhouse gas emissions Signup and view all the answers

Why can't renewable energy sources like wind or sunshine be used all the time?

Renewable energy cannot be stored for later use Signup and view all the answers

Which natural resource listed is considered to be renewable and takes a significant amount of time to renew?

Wood Signup and view all the answers

In the context of energy generation, why is nuclear power considered a clean option?

Nuclear power does not contribute to air pollution Signup and view all the answers

What is the main consequence of using both sides of paper when drawing or writing?

Lower energy consumption Signup and view all the answers

Which action contributes to saving energy in the process of cleaning and pumping wastewater?

Turning off the tap while brushing teeth Signup and view all the answers

What makes non-renewable resources like oil and coal more appealing than renewable resources to some people?

Non-renewable resources can be stored and used when needed Signup and view all the answers

What type of resources can grow again or come back almost as quickly as they are used?

Renewable resources Signup and view all the answers

Which of the following is an example of a renewable energy source mentioned in the text?

Wind power Signup and view all the answers

Why is wind power considered a renewable energy source?

It can grow back as fast as it is used Signup and view all the answers

What happens to non-renewable resources as they are used?

They are used more quickly than they can be replaced Signup and view all the answers

What are some ways mentioned in the text to help conserve natural resources?

Recycling and reusing Signup and view all the answers

What is gas primarily used for according to the text?

Heating homes and water, cooking food Signup and view all the answers

Which of the following statements is true?

Humans should conserve and protect the environment Signup and view all the answers

What is the primary cause of pollution according to the text?

Humans Signup and view all the answers

What does 'recycle' mean in the context of protecting the environment?

To turn something old and useless into something new and useful Signup and view all the answers

What is the significance of practicing the 3Rs in environmental conservation?

They help in conserving resources Signup and view all the answers

What should individuals avoid doing regarding recycling?

Considering recycling a waste of time Signup and view all the answers