Midterm 1

Question 1

What is the correct residence time of carbon dioxide

Answer 1

44 years

Question 2

The Ogalla Aquifer provides what

Answer 2

the us corn belt with its agricultural water supply

Question 3

The only input to a terrarium is

Answer 3

sunlight

Question 4

Oxygen production began on earth via photosynthesis how many years ago

Answer 4

3.5 billion

Question 5

What best describes estuaries?

Answer 5

Where rivers empty into the ocean, providing nutrients

Question 6

What best describes an ecosystem with high inertia

Answer 6

A complex ecosystem that resists change

Question 7

Has Canada reached zero population growth

Answer 7

no

Question 8

What is most affected by the news media

Answer 8

public perception of risk

Question 9

The release of rabbits in Australia is an example of what kind of human impact on ecosystems

Answer 9

introducing competitors

Question 10

Crude birth rate in a society depends on what

Answer 10

age at which typical marriages take place

Question 11

Energy is always lost in the form of what

Answer 11

heat

Question 12

What country has had a successful non voluntary family planning program?

Answer 12

China

Question 13

The increase in the worlds population before about 1600 AD was considered as what

Answer 13

linear

Question 14

What is the term for the region of the atmosphere nearest to the surface of the earth

Answer 14

Troposphere

Question 15

A hazard can be defined as what

Answer 15

any situation that could result in a bad outcome

Question 16

What is not a common in the sense of the “tragedy of commons” by Garrett Hardin

Answer 16

the fish of the grand banks

Question 17

What is a biotic portion of an ecosystem

Answer 17

anything living

Question 18

True or false; Energy cycles through ecosystems but the flow of nutrients is one way

Answer 18

false

Question 19

The second law of thermodynamics

Answer 19

tells us that we lose energy as heat whenever we convert energy from one form to another

Question 20

True or False;The introduction of the Nile perch into lake Victoria is one of the few examples were humans have altered an ecosystem for the better

Answer 20

false

Question 21

Anytime you reduce a risk you incur a what

Answer 21

cost

Question 22

What is the average number of children born per female equal to

Answer 22

total fertility rate

Question 23

What biome would one expect in an area with high temperatures and high rainfall amounts

Answer 23

a tropical rainforest

Question 24

What is the primary reason of the increase in the worlds population in the last 100 years

Answer 24

reduction of the death rate

Question 25

What kind of population would one expect to have the highest crude birth rate

Answer 25

A population with an average of 15 in which many individuals get married before 18 years of age

Question 26

What gas is the major component of Uranus

Answer 26

hydrogen

Question 27

A country has a CBR of 32 and a CDR of 17 what is the countries rate of natural increase

Answer 27

1.5%

Question 28

True or false; In a food chain energy flows in a cycle

Answer 28

false

Question 29

Employment rates of women, cultural values, and use of contraceptives are examples of factors affecting

Answer 29

crude birth rate

Question 30

What country has had a very unsuccessful voluntary family planning program

Answer 30

India

Question 31

The definition of Crude birth rate is

Answer 31

the number of births per 1000 per year

Question 32

CBR - CDR / 10 is what

Answer 32

natural increase

Question 33

The population of Earth goes up by about what each year

Answer 33

90 million