Land Use Change

Question 1

How much of the earth’s land has been altered due to human activity?

Answer 1

-75%

Question 2

Between 1990 and 2015 world energy use increased by __% while population increased by 36%

Answer 2

54%, 36%

Question 3

Why is energy demand larger than population growth?

Answer 3

Due to increase in industry due to more appliances

Question 4

Is agricultural land increasing or decreasing?

Answer 4

-increasing by 11%

Question 5

What happened to agricultural production and what impacts is it having?

Answer 5

-increased consumption of food in the last 50 years
-yield has been significant due to fertilisers and irrigation
-negative impacts on the environment such as soil erosion

Question 6

What is happening in China and Africa in terms of forest cover?

Answer 6

-Ethiopia planted more than 350 million trees
-China has been fighting against desertification by planting trees around the desert to prevent deforestation
-sand storms been reduced by 1/5