Question 1

The food supply of a population is one example of its ____. ​

Accepted Answer

A) carrying capacity 
B) limiting factors 
C) immigration controls 
D) density-limiting controls 
E) density independent controls 
A) carrying capacity 
B) limiting factors 
C) immigration controls 
D) density-limiting controls 
E) density independent controls

Question 2

The "NIMBY" approach is used by citizens to ____. ​

Accepted Answer

A) prevent the development of new landfills by residential areas 
B) prevent fossil fuel burning 
C) stop plastics from entering landfills 
D) promote recycling of plastics 
E) prevent water pollution 
A) prevent the development of new landfills by residential areas 
B) prevent fossil fuel burning 
C) stop plastics from entering landfills 
D) promote recycling of plastics 
E) prevent water pollution

Question 3

How many metric tons of air pollutants does the United States release every day? ​

Accepted Answer

A) 100,000 
B) 200,000 
C) 500,000 
D) 700,000 
E) 900,000 
A) 100,000 
B) 200,000 
C) 500,000 
D) 700,000 
E) 900,000

Question 4

What percentage of the world's tropical forests have been cut down for cropland, fuel wood, grazing land, and timber?

Accepted Answer

A) 20 percent 
B) 30 percent 
C) 40 percent 
D) 50 percent 
E) 60 percent 
A) 20 percent 
B) 30 percent 
C) 40 percent 
D) 50 percent 
E) 60 percent

Question 5

Which flower provides anticancer drugs? ​

Accepted Answer

A) four-o'clock 
B) sunflower 
C) petunia 
D) rosy periwinkle 
E) rose 
A) four-o'clock 
B) sunflower 
C) petunia 
D) rosy periwinkle 
E) rose

Question 6

Match between columns
                        Premises: total number of children born to women during their reproductive years 
500 people/square mile 
number of individuals in a species that can be sustained 
food or water shortage 
relative number of individuals of each age in a population

Accepted Answer

The Answer of total fertility rate  and carrying capacity is...

Question 7

What is NOT a result or an effect of irrigation? ​

Accepted Answer

A) increased food production 
B) saltwater intrusion into water supplies 
C) lowered water tables 
D) uplifted land 
E) salinization 
A) increased food production 
B) saltwater intrusion into water supplies 
C) lowered water tables 
D) uplifted land 
E) salinization

Question 8

Match between columns
                        Premises: uses solely for electrical power generation 
used primarily in transportation 
smallest source for overall energy consumption 
most common source for residential and commercial uses 
primary source for electrical generation

Accepted Answer

The Answer of natural gas and petroleum and nuclear energy is...

Question 9

Salinization of water used in irrigation has reduced crop yields by ____. ​

Accepted Answer

A) 10 percent 
B) 25 percent 
C) 33 percent 
D) 50 percent 
E) 75 percent 
A) 10 percent 
B) 25 percent 
C) 33 percent 
D) 50 percent 
E) 75 percent

Question 10

Which condition is LEAST correlated with a decrease in atmospheric ozone? ​

Accepted Answer

A) more serious sunburns 
B) loss of ocean phytoplankton 
C) increased incidence of skin cancers 
D) decreased levels of atmospheric carbon dioxide 
E) increased occurrences of cataracts 
A) more serious sunburns 
B) loss of ocean phytoplankton 
C) increased incidence of skin cancers 
D) decreased levels of atmospheric carbon dioxide 
E) increased occurrences of cataracts

Question 11

Atmospheric carbon dioxide levels ____. ​

Accepted Answer

A) drop in the winter 
B) drop in the spring 
C) drop in the summer 
D) drop in the fall 
E) always remain constant 
A) drop in the winter 
B) drop in the spring 
C) drop in the summer 
D) drop in the fall 
E) always remain constant

Question 12

What percent of Earth is dry land? ​

Accepted Answer

A) 10 percent 
B) 25 percent 
C) 30 percent 
D) 45 percent 
E) 50 percent 
A) 10 percent 
B) 25 percent 
C) 30 percent 
D) 45 percent 
E) 50 percent

Question 13

Four of the following contribute to acid rain. Which one is the exception? ​

Accepted Answer

A) ozone 
B) burning of coal 
C) nitrogen fertilizers 
D) burning of gasoline 
E) motor vehicles 
A) ozone 
B) burning of coal 
C) nitrogen fertilizers 
D) burning of gasoline 
E) motor vehicles

Question 14

Plastic bags in landfills may still be intact after ____. ​

Accepted Answer

A) 10 years 
B) 20-30 years 
C) 40-50 years 
D) 70-80 years 
E) over 100 years 
A) 10 years 
B) 20-30 years 
C) 40-50 years 
D) 70-80 years 
E) over 100 years

Question 15

In the United States, what fuel source supplies the largest percentage of total energy? ​

Accepted Answer

A) nuclear energy 
B) renewable energy 
C) coal 
D) natural gas 
E) petroleum 
A) nuclear energy 
B) renewable energy 
C) coal 
D) natural gas 
E) petroleum

Question 16

What percentage of trash in the United States is recycled? ​

Accepted Answer

A) 10 percent 
B) 25 percent 
C) 33 percent 
D) 50 percent 
E) 75 percent 
A) 10 percent 
B) 25 percent 
C) 33 percent 
D) 50 percent 
E) 75 percent

Question 17

Infectious disease and parasites that affect population size are ____. ​

Accepted Answer

A) carrying capacity 
B) limiting factors 
C) density-dependent controls 
D) density-limiting controls 
E) density independent controls 
A) carrying capacity 
B) limiting factors 
C) density-dependent controls 
D) density-limiting controls 
E) density independent controls

Question 18

What is the main reason for why there has not been an increase in the production of new nuclear power plants? ​

Accepted Answer

A) the high cost of building 
B) the high cost to produce electricity 
C) lack of nuclear fuels 
D) safety concerns 
E) high greenhouse gas effects 
A) the high cost of building 
B) the high cost to produce electricity 
C) lack of nuclear fuels 
D) safety concerns 
E) high greenhouse gas effects

Question 19

Which of the following is a non-renewable resource? ​

Accepted Answer

A) copper and gold 
B) fresh water 
C) forests 
D) grasslands 
E) fish 
A) copper and gold 
B) fresh water 
C) forests 
D) grasslands 
E) fish

Question 20

In 2008, the United States generated about how many million tons of garbage? ​

Accepted Answer

A) 100 
B) 200 
C) 300 
D) 400 
E) 500 
A) 100 
B) 200 
C) 300 
D) 400 
E) 500

Exam 25: Human Impacts on the Biosphere

The food supply of a population is one example of its ____. ​

The "NIMBY" approach is used by citizens to ____. ​

How many metric tons of air pollutants does the United States release every day? ​

What percentage of the world's tropical forests have been cut down for cropland, fuel wood, grazing land, and timber?

Which flower provides anticancer drugs? ​

What is NOT a result or an effect of irrigation? ​

Salinization of water used in irrigation has reduced crop yields by ____. ​

Which condition is LEAST correlated with a decrease in atmospheric ozone? ​

Atmospheric carbon dioxide levels ____. ​

What percent of Earth is dry land? ​

Four of the following contribute to acid rain. Which one is the exception? ​

Plastic bags in landfills may still be intact after ____. ​

In the United States, what fuel source supplies the largest percentage of total energy? ​

What percentage of trash in the United States is recycled? ​

Infectious disease and parasites that affect population size are ____. ​

What is the main reason for why there has not been an increase in the production of new nuclear power plants? ​

Which of the following is a non-renewable resource? ​

In 2008, the United States generated about how many million tons of garbage? ​

Learning About Human Biology

Chemistry of Life

Cells and How They Work

Tissues, Organs, and Organ Systems

The Skeletal System

The Muscular System

Circulation: the Heart and Blood Vessels

Blood

Immunity and Disease

The Respiratory System

Digestion and Nutrition

The Urinary System

The Nervous System

Sensory Systems

The Endocrine System

Reproductive Systems

Development and Aging

Cell Reproduction

Introduction to Genetics

Chromosomes and Human Genetics

DNA Genes and Biotechnology

Genes and Disease: Cancer

Principles of Evolution

Principles of Ecology

Filters

The food supply of a population is one example of its ____.

The "NIMBY" approach is used by citizens to ____.

How many metric tons of air pollutants does the United States release every day?

Which flower provides anticancer drugs?

What is NOT a result or an effect of irrigation?

Salinization of water used in irrigation has reduced crop yields by ____.

Which condition is LEAST correlated with a decrease in atmospheric ozone?

Atmospheric carbon dioxide levels ____.

What percent of Earth is dry land?

Four of the following contribute to acid rain. Which one is the exception?

Plastic bags in landfills may still be intact after ____.

In the United States, what fuel source supplies the largest percentage of total energy?

What percentage of trash in the United States is recycled?

Infectious disease and parasites that affect population size are ____.

What is the main reason for why there has not been an increase in the production of new nuclear power plants?

Which of the following is a non-renewable resource?

In 2008, the United States generated about how many million tons of garbage?