Over the last 50 years, scientists have recorded an increase in the average atmospheric carbon dioxide. Which of the statements would be the best reason for these findings?

A) Removal of large sections of rain forests through deforestation.
B) Testing equipment has become more sophisticated allowing scientists to get better results.
C) Atmospheric carbon dioxide increases normally in a 50-year time span.
D) More organisms exist on Earth's surface now compared with 50 years ago.


Ans: A) Removal of large sections of rain forests through deforestation.

Biology & Microbiology

You might also like to view...

Double fertilization produces a ___________ embryo and a _________ endosperm.  

A.  haploid, diploid B.  diploid, haploid C.  diploid, triploid D.  triploid, diploid E.  haploid, triploid

Biology & Microbiology

Most microbiology teaching labs operate at biosafety level ____

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

The "X" shaped chromosomal hereditary material can be packaged in this organelle in eukaryotic cells but not in prokaryotic cells. This organelle is the:

A. nucleoid. B. chloroplast. C. ribosomes. D. nucleus. E. mitochondria.

Biology & Microbiology

What fraction of the genome contains genes that are essential for the survival of an organism, meaning that a homozygous null for them is lethal?

What will be an ideal response?

Biology & Microbiology