3 years ago

Is coal biotic or abiotic

Geography

2 answers:

r-ruslan [8.4K]3 years ago

7 0

Answer:

It could technically be either. The majority of coal deposits

appear to be biotic, though there are some geochemists who believe

that abiotic coal deposits might exist deep in the crust.

AfilCa [17]3 years ago

6 0

Answer:

abiotic

Explanation:

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How do I find the area of these?

crimeas [40]

Answer:

For b. 11*3x = 33x

For c. (3x-4)(11x-2) = $33x^{2} -50x+8$

Explanation:

For b. Since it is a rectangular the A = l*w

w = 11 & l = 3x => A = 11*3x = 33x

For c. Since it is a square we could assume that the A = $s^{2}$ a side squared (since they all have the same length) but to be on the safe side, we'll assume it is not a square and do the math of multiplying one side by another (just like for a rectangle)