Cosmology CH 9

Rank, form greatest to smallest, the seasonal variations on

Mercury Mars Earth and Venus

Over the past 800,000 years, ice-core data which of the following are correlated?

Temperature CO2 levels methane levels

which are the reason mercury has so little gas in its atmosphere?

Its mass is small It has a high temperature it is close to the Sun Its escape velocity is low

On which of the following planets is the atmospheric greenhouse effect strongest?

Venus

the oxygen molecules in Earth's atmosphere

are a result of life

the main greenhouse gases in the atmospheres of the terrestrial planets are:

carbon dioxide and water

Place in chronological order the following steps in the formation and evolution of Earth's atmosphere.

hydrogen and helium are captured from the protoplanetary disk hydrogen and helium are lost from the atmosphere volcanoes,comets, and asteroids increase the inventory of volatile matter Life releases CO2 from the subsurface into the atmosphere plant life converts carbon dioxide to oxygen oxygen enables the growth of new life-forms

the differences in the climates of Venus, Earth and Mars are caused primarily by

the thickness of their atmosphere

All weather and wind on Earth are a result of convection in the:

troposphere