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Life in our Solar System Flashcards | StudBud
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Life in our Solar System
Life in our Solar System
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1
Life could exist on another planet in another solar system if...
Its orbit and mass are similar to Earth's.
It has an atmosphere with oxygen
All of these choices are needed
It has liquid water
2
Earth's early atmosphere contained a lot of ….
oxygen & carbon dioxide
hydrogen & helium
methane & oxygen
water vapor & oxygen
3
What is the best reason for explaining why life doesn't exist on Earth's moon?
It doesn't have an atmosphere
Too Cold
It's mass is too small.
No liquid water
4
Important elements that support life are...
H, He and Li
C, N, O, H, P & S
Ozone, CO2, H20 and O2
H, He, O, CO2 & H20
5
The parts of the air, water and soil that support life is the...
atmosphere
hydrosphere
geosphere
biosphere
6
The parts of the solar system where life can exist is called the...
biozone
biosphere
habitable zone
kepler zone
7
Parts of the hydrosphere are...
precipitation, condensation and evaporation
Salt water and fresh water
oceans, lakes, groundwater, glaciers and water vapor
volcanic activity, geysers and floods
8
What is the best reason for explaining why life doesn't exist on the gas planets?
Temperatures are too cold
They only have water vapor and ice crystals.
Their atmospheres are made of hydrogen and helium.
Their masses and orbits are too big.
9
What part of the biosphere that was important in getting oxygen into the atmosphere was...
volcanoes
a water cycle
evolution of plants
accretion
10
Which conditions are most important in supporting life on Earth?
rocky planet & atmosphere
liquid water & atmosphere with carbon dioxide
mass & orbit
distance from the sun & atmosphere
11
What is the best reason for explaining why life could be found on Mars and not Venus?
Venus has a smaller mass
Mars may have had water.
Mars has a smaller force of gravity
Venus is too hot.
12
In order for life to evolve, the atmosphere needed to have….
nitrogen
ozone
oxygen
carbon dioxide
13
The planets, moons and meteorites have the same elements found in their rocky layers because...
They formed from the same galaxy
They are so close to the sun.
They formed from a big bang
They formed from the same nebula
14
Volcanic activity is important to the biosphere because it...
cycles important elements through the atmosphere
releases oxygen into the air
forms mountains and other physical features
produces lava and forms rocks
15
The earth is protected from UV light and meteorites by the...
stratosphere
atmosphere
ozone
habitable zone
