If you picked up a basalt rock which was shaped like a teardrop it could be a

If you picked up a "basalt rock" which was "shaped like a teardrop", it could be a "volcanic bomb".

Explanation:

When there is a volcanic eruption, the pieces of molten magma are thrown into the air. The gravitational force acts on it to pull it down in such a way that while coming down, the pieces take up the shape of a teardrop. These pieces, for the sole reason that they are shaped like a bomb and are erupted out of volcanoes, are called volcanic bombs.

The answer is c, i, iii, and iv. this is because farming and mining deal with harvesting raw materials, construction work falls under manufacturing, and piloting a plane is a service. ii is wrong because making bread is using  raw materials to produce goods, which would fall under the secondary sector, not primary.

The answer is itprovides information about locationis a network of satellites orbiting the earth