Which of the following is the best definition of deposition in geology? (need answer fast) 1.the mixing of many layers of sediment by wind, water or ice
2.laying down of sediment in layers carried by wind, water or ice
3.the creation of any metamorphic rock
4. the creation of volcanic rock when liquid hits the ocean and cools

i am confused, what is the question? i can you out if you put it into more depth.

d. the polar jet stream   lies between the polar easterlies and trade winds should be your answer

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.

answer; education;