Any rock exposed at earth’s surface will undergo

Answer : Option A) Weathering.

Explanation : Any rock exposed at the Earth's surface will undergo weathering. This occurs because most rocks are formed at high pressures and temperatures, which are away from the influence of oxygen or water. When these are brought to the surface by volcanoes or any Earthly movements, such material is found to be chemically unstable and will break down into a more stable form.

The rocks are found to get weathered in two ways: chemically and mechanically which involves erosion by rivers, wind, waves, or glaciers.

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.