Question 5 Select one answer. 10 points Which option lists three important green
ID: 50097 • Letter: Q
Question
Question 5
Select one answer.
10 points
Which option lists three important greenhouse gases?
O3 (ozone), CFCs, and SO2 (sulfur dioxide)
nitrogen gas (N2), oxygen gas (O2), and carbon dioxide (CO2)
carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O)
Question 6
Select one answer.
10 points
Which best Starting in the 1950s, populations of Atlantic cod were heavily fished by highly efficient commercial trawlers. Catches started to decline in the 1970s and by 1990 several of the fisheries were completely depleted. Was the cod population a renewable resource when fished at that level? how impact changes with development of technology?
Yes; plant and animal populations are always renewable resources.
No, because growth and reproduction of the fish couldn’t keep up with the harvest.
Question 7
Select one answer.
10 points
In a warming world, seasonal events are occurring earlier in spring and later in fall. Is this a significant problem?
Yes, because species respond differently. This can lead to mismatches between the life cycles of plants and pollinators, predators and prey, etc.
No, because all species are responding in the same way. The growing season is longer, so species are likely to benefit from this change.
Question 8
Select one answer.
10 points
Which of the following is renewable and biodegradable?
A plastic flip-flop
A metal knife
A wooden Popsicle stick
A glass window
None of the above
Question 9
Select one answer.
10 points
What is biodiversity?
The variety of ecosystem types present within a region
Variation within a population’s or species’ gene pool
The variety of life at all levels, including all of the other options
Question 10
Select all that apply.
10 points
Which of the following are common benefits that humans get from functioning natural ecosystems and the biodiversity that is found there? Select all that apply.
Grasslands and wetlands produce corn, wheat, rice and other grain crops.
Forests prevent landslides and help protect coastlines from storm surges and tsunamis.
Most natural ecosystem types provide recreational opportunities for hiking, wildlife watching, hunting, fishing, etc.
Mosquitoes and other disease vectors inhabit natural wetlands and forests.
Diverse species contain countless biomolecules that may be used as drugs or for other purposes.
Explanation / Answer
Q 5. carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O).
Greenhouse effect is a process by which thermal radiation released by different sources is absorbed by greenhouse gases and re-irradiated again, which ultimately results in Global warming. Oxygen is an essential gas for the survival of all living beings and it do not cause the greenhouse effect. Ozone is a pale blue gas that protect Earth from harmful UV radiation. Thus, the correct option is "carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O)."
6. No, because growth and reproduction of the fish couldn’t keep up with the harvest.
We cannot always consider that animals and plants are renewable surces,
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