Science 2 Quarter 4 Week 1: Natural Resources and Sunlight

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Questions and Answers

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?

<p>Because only a small percentage of water on Earth is accessible as freshwater. (D)</p> Signup and view all the answers

What role does air play in generating power?

<p>Air contains oxygen which can be used to generate power. (D)</p> Signup and view all the answers

How can individuals contribute to reducing air pollution?

<p>By considering the causes of air pollution and taking steps to reduce them. (B)</p> Signup and view all the answers

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

<p>Oil produces a lot of waste when burned (B)</p> Signup and view all the answers

What type of natural resource is coal classified as?

<p>Non-renewable (A)</p> Signup and view all the answers

Why is uranium considered a non-renewable resource?

<p>Uranium is not replaced in nature on a human timescale (B)</p> Signup and view all the answers

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

<p>Saves water used in rivers (C)</p> Signup and view all the answers

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

<p>Natural gas will eventually run out (B)</p> Signup and view all the answers

What is the primary environmental impact of reducing food wastage?

<p>Reduced greenhouse gas emissions (D)</p> Signup and view all the answers

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

<p>Renewable energy cannot be stored for later use (B)</p> Signup and view all the answers

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

<p>Wood (D)</p> Signup and view all the answers

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

<p>Nuclear power does not contribute to air pollution (C)</p> Signup and view all the answers

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

<p>Lower energy consumption (C)</p> Signup and view all the answers

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

<p>Turning off the tap while brushing teeth (A)</p> Signup and view all the answers

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

<p>Non-renewable resources can be stored and used when needed (C)</p> Signup and view all the answers

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

<p>Renewable resources (A)</p> Signup and view all the answers

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

<p>Wind power (A)</p> Signup and view all the answers

Why is wind power considered a renewable energy source?

<p>It can grow back as fast as it is used (A)</p> Signup and view all the answers

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

<p>They are used more quickly than they can be replaced (C)</p> Signup and view all the answers

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

<p>Recycling and reusing (C)</p> Signup and view all the answers

What is gas primarily used for according to the text?

<p>Heating homes and water, cooking food (C)</p> Signup and view all the answers

Which of the following statements is true?

<p>Humans should conserve and protect the environment (C)</p> Signup and view all the answers

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

<p>Humans (C)</p> Signup and view all the answers

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

<p>To turn something old and useless into something new and useful (D)</p> Signup and view all the answers

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

<p>They help in conserving resources (A)</p> Signup and view all the answers

What should individuals avoid doing regarding recycling?

<p>Considering recycling a waste of time (D)</p> Signup and view all the answers

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