Author Question: During the twentieth century, the Earth's atmospheric temperature increased by about ________ ... (Read 56 times)

appyboo · **on:** Jul 14, 2018

During the twentieth century, the Earth's atmospheric temperature increased by about ________ degree(s) Celsius.

A) .3
B) 1
C) 2
D) 3

Question 2

Climate over the past 2 million years has

A) stayed the same.
B) become progressively cooler.
C) become progressively warmer.
D) shifted between warm and cool periods.