National And Global Resources

Question 1

Biofuel

Answer 1

Transport and electrical generation

-large areas are needed, expense of food crops in poorer countries

Question 2

Wind

Answer 2

Electrical generation

• can be noisy
• not a constant source

Question 3

Water (hydro electricity)

Answer 3

Electrical generation

-large areas of land need to be flooded, people have to move

Question 4

Geothermal

Answer 4

Electrical generation and heating

-only available where hot rocks can be found close to surface , Iceland

Question 5

Tidal

Answer 5

Electrical generation

-alter habitats, and expensive

Question 6

Solar

Answer 6

Electrical generation and some heating

-depends on light intensity

Question 7

Water waves

Answer 7

Electricity generation

-output depends on waves