Term 4: Unit 1: Natural resources: pg. 204 - 206 Flashcards
What are natural resources?
Natural resources = anything that occurs in nature.
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.
- Basis
- 70%
- Oceans
AIR
Air is mainly composed of ______, oxygen and argon.
- Nitrogen
FORESTS
Forests are essential for life because they help to provide _______ air.
- Clean
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.
- Top
- Broken
- Erosion
- Survival
ANIMALS
They supply us with _____.
- Food
MARINE LIFE
Marine life is a ____ resource, and provides food, ________ and raw materials.
- Vast
- Medicine
MINERALS
Minerals include iron, _____ and gold. We use many of them in ____________.
- Copper
- Manufacturing
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 _______.
- Below
- Millions
- Animals
- Oil
- Energy
What do we use water for? Name 6.
- Drinking
- Cooking
- Washing
- Recreation
- Agriculture - to grow crops
- Industries - in the manufacturing process
What is the main use of soil?
To grow crops.
What can soil also be used for, besides to grow crops? Name 2.
- Construction
2. Industry
What can timber from forests be used for? Name 2.
- To make furniture
2. To make rafters to hold up roofs of houses
What do trees in forests do to make sure that our air is clean?
They do the process of photosynthesis.
What do we mainly use fossil fuels for?
To produce energy.