The age of the oldest amphibian fossils is

a. Early Devonian. d. Early Silurian.
b. Late Silurian. e. Cambrian.
c. Late Devonian.


C

Environmental & Atmospheric Sciences

You might also like to view...

Antarctica

A) is owned by the United Nations. B) has a small but thriving native population. C) is the coldest place in the Northern Hemisphere. D) has been carved like a territorial pie into claims by various states.

Environmental & Atmospheric Sciences

At present, sea level is decreasing around the world's coasts.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

Smog, the product of NOX, sunlight, and ________, is created by chemical reactions that occur in the atmosphere

A) carbon monoxide B) sulfur oxides C) hydrocarbons D) particulates

Environmental & Atmospheric Sciences

Projections for mineral use, even with conservative estimates of consumption levels, suggest that present reserves of most metals/minerals could be exhausted within what time frame?

a. A few years b. A few decades c. A few centuries

Environmental & Atmospheric Sciences