What is the importance of the extraction of elements?

(Electricity, early man, nylon, cook, deforestation, protecting.)

Coal is burnt to produce _____.

Name a mineral.

Fill in the blank with a suitable word:

These places contain thick deposits of coal are Dhanbad, Neyveli and Raniganj located in _____ (Delhi/Bengaluru).

Unscramble the jumbled letters and fill in the blank: LOAC

_____ is used to run steam engines.

Write the uses of following natural resource.

Fossil fuels

Fill in the blank with the correct word given in the bracket.

_____ [coal/water] is used as natural fuel.

Fill in the blank with a suitable word:

The rock which is burnt to produce fire is _____ (coal/diamond).