Answer: Options A, B and D.
Explanation: shields are layers of old rocks that metamorphosed as a result of mountain-building events. Shields also have sedimentary layers that usually rest on the lava of the rock.
An imaginary line that crosses Ecuador
The answer is D. Ecosystems experience change through human activity and natural events
Answer:
Snow is the answer
Explanation:
Precipitation elements begin to form in the part of the cloud where ice crystals and cloud droplets coexist. Most precipitation starts out as snow, except for rain that comes out of very low clouds.
The correct answer is A. magma
Magma is just lava but when it's inside of the volcano. When it leaves the volcano it becomes lava.
