Question 1

the average number of people in a unit of area

Accepted Answer

population density

Question 2

land suitable for growing crops

Accepted Answer

arable land

Question 3

the population of a country divided by its total land area

Accepted Answer

arithmetic population density

Question 4

the population of a country divided by its arable land area

Accepted Answer

physiologic population density

Question 5

where people live in a country, whether crowded together in cities or spread out across the countryside

Accepted Answer

population distribution

Question 6

a large piece of Earth's crust that floats on the liquid mantle

Accepted Answer

tectonic plates

Question 7

a piece of land surrounded by water.

Accepted Answer

island

Question 8

How does population density affect the way people live?

Accepted Answer

Essential Question: Ch. 31

Question 9

huge sea waves

Accepted Answer

tsunamis

Question 10

families with just parents and their children

Accepted Answer

nuclear family

Question 11

grandparents, parents and children all under the same roof

Accepted Answer

extended family

Question 12

the average age to which a person in a given population can expect to live.

Accepted Answer

life expectancy

Question 13

rainfall that has large amount of acid

Accepted Answer

acid rain

Question 14

a useful material that is found in nature, such as water, wood, coal, or oil

Accepted Answer

natural resource

Question 15

the creation of flat areas on mountain slopes for the purpose of farming

Accepted Answer

terracing

Question 16

70 percent

Accepted Answer

What percent of Japan is covered with mountains?

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