D. Give one word answers.
1. Remains of objects which existed upon the
earth at one time and preserved as remnants
under the crust of the earth
2. The solid residue left behind when coal is
heated in the absence of air.
Thick black liquid obtained on heating coal
in the absence of air.
4. Solid waste left at the base of Petroleum
fractional tower.
Answers
Answered by
1
Answer:
fossil fuels
Explanation:
Similar questions