Food Security

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What percentage of the world's grain production is used to produce meat that many poor people cannot afford?

5%

50%

38%

33% (correct)

What is the projected population of the earth by 2050?

5 billion people

9.7 billion people (correct)

7 billion people

10 billion people

What are the factors that can lead to food insecurity?

Bad weather, climate change, and poverty (correct)

Bad weather, war, and poverty

Bad weather, war, and climate change

War, climate change, and poverty

What are mineral reserves?

Minerals that can be extracted profitably Signup and view all the answers

What are the five choices when a mineral resource becomes economically depleted?

Recycle or reuse, waste less, use less, find a substitute, or do without Signup and view all the answers

What happens when a mineral becomes scarce?

Its market price increases Signup and view all the answers

Which of the following is NOT one of the five choices when a mineral resource becomes economically depleted?

Increase extraction efforts Signup and view all the answers

What are some of the minerals that are relatively scarce?

Manganese, Chromium, and Cobalt Signup and view all the answers

What happens when the market price of a scarce mineral increases?

It becomes less profitable to extract less concentrated reserves Signup and view all the answers

Which mineral is NOT obtained profitably from seawater?

Phosphates Signup and view all the answers

What minerals are found in sediments along the shallow continental shelf and adjacent shorelines?

Copper, iron, and tungsten Signup and view all the answers

What minerals are especially rich in hydrothermal ore deposits known as black smokers?

Copper, lead, and zinc Signup and view all the answers

Which type of mining is mostly used to mine coal and various minerals on mountainous terrain?

Contour strip mining Signup and view all the answers

What is left after contour strip mining if the land is not restored?

A series of spoils banks and a highly erodible bank of soil and rock called a highwall Signup and view all the answers

What is used to remove minerals in area strip mining?

Power shovels Signup and view all the answers

Food Security

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