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Please answer all questions



1

We are currently at the highest human growth rate in history.
A)True
B)False
2

The biotic potential is the maximum population that the environment can support for an indefinite period of time.
A)True
B)False
3

In LDC's (less-developed countries), the death rate has declined but the birthrate has remained high.
A)True
B)False
4

Africa will experience the greatest population increase in the next 50 years.
A)True
B)False
5

A resource is anything needed from the biotic or abiotic environment for human life and civilization.
A)True
B)False
6

A nonrenewable resource supply can never be exhausted.
A)True
B)False
7

The need of a population for resources and the amount of pollution it produces is independent of its size.
A)True
B)False
8

Agriculture poses the greatest threat to our fresh water supply.
A)True
B)False
9

Aquifers are supplying more and more of the fresh water used by man.
A)True
B)False
10

By planting only one type of crop, farmers run the risk of crop loss from disease.
A)True
B)False
11

Soil erosion is a serious problem that affects both our water and food supplies.
A)True
B)False
12

Salinization makes land unsuitable for growing crops.
A)True
B)False
13

A disease in the LDCs caused by severe carbohydrate deficiency is called kwashiorkor.
A)True
B)False
14

Domesticated livestock eat a large portion of the crops raised in the US and account for large amounts of pollution.
A)True
B)False
15

Hydrogen, which can be used as a fuel, can be extracted from water using solar energy.
A)True
B)False
16

Strip mining is more environmentally feasible than deep mining.
A)True
B)False
17

Biological magnification of hazardous waste means they have become more concentrated in the food chain since they accumulate in the bodies of organisms.
A)True
B)False
18

Fertilizer runoff and human sewage can cause increased algae growth in lakes and rivers leading to increased fish populations.
A)True
B)False
19

Biodiversity refers to the number of different species on Earth.
A)True
B)False
20

Habitat loss has occurred in all ecosystems and is a major factor in causing extinction.
A)True
B)False
21

Introduction of alien species usually means a beneficial contribution to local food webs.
A)True
B)False
22

Overfishing for a food source, such as tuna, is an example of overexploitation.
A)True
B)False
23

Overexploitation of one species can have a detrimental effect on other species as the food web is interrupted.
A)True
B)False
24

Emerging diseases do not affect wildlife as they affect humans.
A)True
B)False
25

The natural biogeochemical cycles are important because technology can not contribute to or create any of them.
A)True
B)False
26

Decomposers do not perform a needed function in maintaining biodiversity.
A)True
B)False
27

Freshwater has no substitute.
A)True
B)False
28

The rosy periwinkle provides medicines used to treat leprosy.
A)True
B)False
29

The use of natural predators or natural resistances saves money as well as preserves biodiversity.
A)True
B)False
30

Many natural products such as crops, fish, fruit, and rubber, are important to the economies of nations.
A)True
B)False
31

The overpopulation of MDCs and the overconsumption of LDCs increase pollution and extinction of wildlife.
A)True
B)False
32

The Gross National Product pertains solely to economic activities and does not take into consideration activities that are socially or environmentally harmful.
A)True
B)False







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