Author Question: Current CO2 levels are higher than they have been at any other time during the history of the human ... (Read 60 times)

kellyjaisingh · **on:** Jul 27, 2018

Current CO2 levels are higher than they have been at any other time during the history of the human species.

Indicate whether the statement is true or false

Question 2

In order to be able to directly see the Sun's motion due to Jupiter's gravity, an observer at a distance of 30 light-years would need to be able to measure changes in its position of ________.

A) 0.0005 arcsecond B) 0.05 arcsecond C) 0.005 arcsecond D) 0.5 arcsecond