PSES Ch 10

life on earth is dependent on what?

• fire

• water

• sun's energy

• wind

inclination of the earth, yearly orbit of the earth around the sun, and daily spin of the earth. Are all...

• seasonal and day length effects

• how days happen

• how the earth orbits

• how seasons happen

what is it called when day and night are equal

• spin

• equal

• orbit

• equinox

what is the longest and shortest day of the year?

• July 20/21 and January 20/21

• June 22/23 and December 22/23

• June 21/22 and December 21/22

• August 21/22 and December 21/22

What effects plants

• light intensity

• light quality

• light duration

• light length

how far can our gaseous layer extend?

• 70 miles

• 45 miles

• 50 miles

• 100 miles

Our atmosphere is composed of

• stratosphere

• mesosphere

• thermosphere

• troposphere

• all of the above

Which layer is closest to the earth and has the greatest impact on temperature?

• thermosphere

• troposphere

• stratosphere

• mesosphere

Which layer is the Ozone?

• mesosphere

• troposphere

• stratosphere

• thermosphere

What are the functions of the atmosphere

• all of the above

• protection

• source of vapor

• temp regulation

• selective passage of radiation