What are the so-called greenhouse gases that trap heat?
a) carbon dioxide, methane, nitrous oxide, ozone, chlorofluorocarbons
b) oxygen, water vapor, black carbon, carbon dioxide
c) hydrogen, nitrogen, sulfur dioxide, oxygen
d) carbon dioxide, methane, oxygen, ozone
e) ozone, smog, nitrous oxide, aerosols
Question 2
Why are spring tides highest when the Moon is near perigee?
a) The Moon is moving fastest in its orbit at that time
b) The Moon is farther from Earth, so gravitational force is greater
c) The difference between solar and lunar tides is maximum at this time
d) The Moon and Sun are lined up
e) The Moon is closer to the Earth, so gravitational force is greater
First Camera Trap Photos of Rare Leopard in China
This exhaust manifold has a heat shield to help retain the heat and help reduce exhaust emissions.
When the EGR valve opens, exhaust gases flow through the valve and into passages in the intake ...
Carbon Dioxide, Trace Gases, and Climate Change
Fate of the Amino acid carbon skeletons
Carbon dioxide (~390ppm)