Term 4: Unit 1: Natural resources: pg. 204 - 206 Flashcards

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1
Q

What are natural resources?

A

Natural resources = anything that occurs in nature.

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2
Q

WATER
It is the _____ of all life on Earth. Water covers ____% of the Earth’s surface. Over 95% of the Earth’s water is found in the ______, so only a very small amount of water on Earth is available for people to use.

A
  • Basis
  • 70%
  • Oceans
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3
Q

AIR

Air is mainly composed of ______, oxygen and argon.

A
  • Nitrogen
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4
Q

FORESTS

Forests are essential for life because they help to provide _______ air.

A
  • Clean
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5
Q

SOIL
Soil is the ____ layer of the Earth’s surface. It is made up of particles of ______ rock due to weathering and ______. Soil is also essential for our ______ because most food comes from agriculture, which needs soil.

A
  • Top
  • Broken
  • Erosion
  • Survival
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6
Q

ANIMALS

They supply us with _____.

A
  • Food
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7
Q

MARINE LIFE

Marine life is a ____ resource, and provides food, ________ and raw materials.

A
  • Vast

- Medicine

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8
Q

MINERALS

Minerals include iron, _____ and gold. We use many of them in ____________.

A
  • Copper

- Manufacturing

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9
Q

FOSSIL FUELS
Fossil fuels are also naturally occurring substances found ____ the Earth’s surface. They take _____ of years to form inside the Earth from dead plants and ______. Examples of fossil fuels include coal and crude ___. Fossil fuels are important because we use them to produce _______.

A
  • Below
  • Millions
  • Animals
  • Oil
  • Energy
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10
Q

What do we use water for? Name 6.

A
  1. Drinking
  2. Cooking
  3. Washing
  4. Recreation
  5. Agriculture - to grow crops
  6. Industries - in the manufacturing process
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11
Q

What is the main use of soil?

A

To grow crops.

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12
Q

What can soil also be used for, besides to grow crops? Name 2.

A
  1. Construction

2. Industry

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13
Q

What can timber from forests be used for? Name 2.

A
  1. To make furniture

2. To make rafters to hold up roofs of houses

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14
Q

What do trees in forests do to make sure that our air is clean?

A

They do the process of photosynthesis.

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15
Q

What do we mainly use fossil fuels for?

A

To produce energy.

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16
Q

How do we abuse water? Name 2 ways.

A
  1. We abuse it by wasting it

2. When we pollute it

17
Q

How do we abuse soil? Name 2 ways.

A
  1. When we cause soil erosion

2. When we pollute it

18
Q

How do we abuse forests? Name 2 ways.

A
  1. Deforestation for houses and farming

2. Firewood

19
Q

How do we abuse fossil fuels? Name 1 way.

A

We abuse fossil fuels by our ever-increasing demand for energy. The pollution caused by power stations cause global warming, climate change and unusual weather (acid rain).