Earth Science B - Review questions

Description of atmospheric conditions over time

climate

bottom layer of the atmosphere that we live in

troposphere

form of radiation with the longest wavelength

radio waves

layer that contains ozone and filters uv radiation

stratosphere

average kinetic energy of all the atoms and molecules that make up a substance is referred to as

temperature

two principle absorbers of radiation emitted by earth’s surface are carbon dioxide and what

water vapor

which gas is most abundant in clean, dry air

nitrogen

best description of air

it is a mixture

what gas plays a more important role in weather processes than the others

carbon dioxide

practically all clouds and storms occur in this layer of the atmosphere

troposphere

primary wavelengths emitted by earth’s surface are

longer than the ones emitted by the sun

T/F - Lengths of daylight and darkness are equal during equinox

True

T/F - Vegetation can increase the amount of precipitation that falls over and area

True

The greenhouse effect is best described as

a natural warming of the atmosphere

Recent global warming appears to be the result of

increase of greenhouse gasses in the air

melting ice caps can result in what

rise in sea level

An increase in ocean temperatures can cause

melting of sea ice

How long ago was earth’s temperatures similar to temperatures today

135,000 years ago

when do you think earth was covered with more ice than is on our planet today

between 135,000 and 20,000 years ago

which part of the temperature graph shows the global warming trend discussed in the chapter

the time from 100 years ago to the present

when during the past 160,000 years were carbon dioxide concentrations the highest

about 120,000 years ago

What were the carbon dioxide levels in the atmosphere during the ice age in the past 160,000 years

between 190 and 200 ppm