Heat from the earth's core and pressure on the remains of dead plants and animals create

The correct answer is coal and natural gas.

Explanation:

The natural gas and coal are the fossil fuels that were produced over millions of years, from the remnants of dead plants and animals. The formation of coal takes place from the dead trees and other plant components, and the formation of natural has taken place from dead marine species. Both coal and natural gas are formed by the action of heat and pressure over the million years.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.