Question

3. Hardeep Singh excavated the land and found raw iron and copper in it. What are these substances called? 1) Mineral Resources 2) chemical Resources 3) Energy Resources  4) None of these​

Answer 1

Answer:

1) Mineral Resources.

This is the answer, I hope this helps.

Answer 2

Explanation:

Currently, there are strong drivers to become more efficient in metal extraction because, for some metals, discoveries of new high-grade deposits or large low-grade deposits are too few to match the predicted growing demand. Cases in point are copper, for which there is already a supply deficit that is likely to continue and zinc, for which the surplus of recent years (Figure 1) is likely to become a deficit. With 16 planned zinc mine closures in the period 2013–2017 and a predicted increase in consumption from 13.5 to 20.5 Mt by 2025 [1], the zinc deficit could increase to as much as 30% of zinc production. These two metals with a long history are seemingly indispensable to the well being of developed nations. Other “indispensable” metals include:

Ta, In, Ru, Ga, Ge and Pd used in electrical and electronic equipment,

Ga, Te, In and Ge in photovoltaic cells,

Co, Li and rare earths in batteries, and

Pt, Pd and rare earths in catalysts [2].