Earth's water
What is the first step of the water cycle?
A: precipitation
B: condensation
C: evaporation
D: runoff
What is option C. Evapartion.
What mainly makes up the atmosphere?
What takes up 87 percent of earth's atmosphere. Nitrogen.
what is the process of plant growth?
What is photosynthesis.
What is weathering of land?
What is the process of land breaking over time due to natural forces. Weathering.
What percent of water on earth is salt water?
What is 97 percent. Saltwater.
How many layers are there in the atmosphere?
What has 5 layers. The atmosphere.
What happens when animals die?
What is a Decomposer.
Which one of these is a cause of deformation of earths land?
A: dog food
B: ice/glaciers
C: salt
D: too much sunlight
what is B. Ice/glaciers
How much percent of earth' water is trapped in glaciers?
What is 68.7 percent of freshwater. Glaciers.
How much of the atmosphere does oxygen takes up?
What takes up 21 percent of the atmosphere. Oxygen.
what would happen if an plant or animal was taken away from a environment?
A:Nothing would happen
B:the sun would die out
C: a prettier plant will grow
D: Other plants and animals will die
What is D. Other animals and plants will die.
What gas causes an volcano to erupt?
what is carbon dioxide. When animals die their carbon goes into the ground and gets transferred and builds up pressure in a volcano.
How is salt water treated?
A: By animals drinking it
B: by mixing it with fresh water
C: take the water out of the ocean
D: by putting it through filter
What is D. Putting it through a filter
What gas is highly flammable?
What is hydrogen. A flamable gas.
What helps stop erosion?
A:plants
B:sunlight
C:the ozone
D:wind
What is A. Plants
what happens to earths land when a volcano erupts?
What causes the physical features of earth's land to change. Volcanic eruptions.
Is water an universal solvent?
What is a unverisal solvent. Water.
what gas do cows release that contributes to global warming?
What is methane gas.
What do plants absorb and what do plants release?
What is carbon dioxide and oxygen.
out of these choices which one is made up of earths land?
A:Mountains
B:soil
C:boulders
D: valleys
E: flat lands
F:all of the above
What is F. All of the above.