Which belongs in the blank space of the chemical equation for the burning of fossil fuels below?
fossil fuel + oxygen gas  + water + heat

The correct answer for the blank in reaction product is-

Carbon dioxide.

Explanation-

Fossil fuel + Oxygen gas> Carbon dioxide + water + heat



Burning of fossil fuels is also known as combustion. During this process, fossil fuels (like petroleum, natural gas, and coal) are burnt to produce carbon dioxide, water and energy in the form of heat.

This is because hydrogen and carbon of fossil fuels undergo reaction with oxygen to form carbon dioxide and water.

i believe you meant to say air rather than hair so the answer is below ")

the dead sea, the lowest place on earth at 430 metres (1,410 ft) below sea level, has a correspondingly high typical atmospheric pressure of 1065 hpa.