Question

Hii friends , plzz help me. What are
1. Rocks
2. Ores
3. Soil erosion

Answer 1

The solid mineral material forming part of the surface of the earth and other similar planets, exposed on the surface or underlying the soil is called Rocks.
An ore is an occurrence of rock or sediment that contains sufficient minerals with economically important elements, typically metals, that can be economically extracted from the deposit.
Soil erosion is the displacement of the upper layer of soil, one form of soil degradation. 

Answer 2

rocks: the solid mineral material forming part of the surface of the earth and other similar planets, exposed on the surface or underlying the soil.
ores: a naturally occurring solid material from which a metal or valuable mineral can be extracted profitably.
soil erosion:Soil erosion is defined as the wearing away of topsoil. Topsoil is the top layer of soil and is the most fertile because it contains the most organic, nutrient-rich materials. One of the main causes of soil erosion is water erosion, which is the loss of topsoil due to water.