Earth is about ________

A) 6,000 years old
B) 4.6 billion years old
C) 4.6 million years old
D) 40 billion years old
E) 400,000 years old


B

Environmental & Atmospheric Sciences

You might also like to view...

Glacial deposits, as well as striated and polished bedrock, indicate that two major episodes of glaciation took place during the _______________

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences

One example of artificial selection is ________

A) the process of allopatric speciation B) pet dogs that have gone wild, mate with coyotes, and live in packs C) humans placing a gene for human insulin into a flower D) broccoli, cauliflower, cabbage, and brussels sprouts bred from Brassica oleracea E) crossing a lion and a tiger to get a sterile animal called a liger

Environmental & Atmospheric Sciences

The earth receives energy from the Sun by:

A) conduction. B) convection. C) scattering. D) radiation.

Environmental & Atmospheric Sciences

What environmental features make Yunnan particularly suitable for such plantation crops as tea and coffee?

What will be an ideal response?

Environmental & Atmospheric Sciences