Please help me answer 1-3 :)
25 points
Don’t guess!

I will give brainlst

Identify the various levels of atmosphere. troposphere mesosphere exosphere stratosphere thermosphere

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?