What element is present in all organic compounds​

Four elements, hydrogen, carbon, oxygen and nitrogen, are the major components of most organic compounds.

Explanation:

Except on Star Trek (the original there was a creature made of Silicon as a base) every organic compound has Carbon in it and usually hydrogen (but there are exceptions).

cock topography

the study of the surface of a large voluptuous cock.

look at that sorostitute right she's a cock topographer!

what classes are you taking this

cock topography!

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.