Carbon dioxide in the atmosphere ____

a. is destroying the ozone layer
b. has dramatically increased in the last few decades
c. is one of the prime reasons for acid depositions
d. is a waste gas produced by respiration and has no biological use
e. can change spontaneously to carbon monoxide in sunlight


ANSWER: b

Biology & Microbiology

You might also like to view...

If you were to evaluate these claims using the scientific method, what would be the first step?

A) Conduct an experiment. B) Gather testimonials. C) Develop a hypothesis. D) Evaluate the results.

Biology & Microbiology

Which process converts one parental double-stranded DNA molecule to two identical offspring molecules?

A. transformation B. transcription C. replication D. translation

Biology & Microbiology

The primary mycelium of basidiomycetes is dikaryotic

____________________ Indicate whether the statement is true or false.

Biology & Microbiology

Negative feedback control systems are the most common mechanisms for maintaining homeostasis.

a. true b. false

Biology & Microbiology