You have a friend who is wary of environmentalists' claims that global warming?

Question

23) You have a friend who is wary of environmentalists' claims that global warming

could lead to major biological changes on Earth. Which of the following statements can

you truthfully make in response to your friend's suspicions?

A. We know that atmospheric carbon dioxide has increased in the last 150 years

B. Through measurements and observations, we know that carbon dioxide and

temperature are correlated, even in prehistoric times

C. Global warming could have significant effects on United States agriculture.

D. A and C only

E. A, B, and C

24) If a field has 2000 kilograms of plants available, you might expect that

field to support how many kilograms of predator?

A. 20,000

B. 200

C. 20

D. 2

Answer 1

You have to go by science. We know CO2 is a greenhouse gas. We know the temperature of the Earth is warmer today than it was 150 years ago- by about 1/2 a degree, but still warmer. We know temperature and CO2 are correlated. The answer for 23 is E.

24, is one where you have to know a little about autotrophs. The preditor can only get 10% of its initial autotropic energy. 10% of 2,000 is 200, so the answer is B.

Answer 2

I am that friend, when it comes to man made gw, I don't believe a word of it.

Answer 3

23) B. Through measurements and observations, we know that carbon dioxide and

temperature are correlated, even in prehistoric times

Answer:  Yes there was a correlation, however it was temperatures that lead co2 by some 800 years as shown by the Vostok Ice Core Data.

Co2 does not cause temperatures to rise, temperatures cause co2 to increase.

Your questions are biased.