Question : _____ is the process by which rocks are broken down at the Earth's surface into sediments, clay, soils and substances that are dissolved in water.

Option 1: Loess

Option 2: Erosion

Option 3: Weathering

Option 4: Leaching

Question : Rocks that are formed by the cooling of magma are called:

Option 1: Sedimentary rocks

Option 2: Igneous rocks

Option 3: Metamorphic rocks

Option 4: Rock salts

Question : The amount of oxygen in the atmosphere remains relatively constant because it is given off by

Option 1: oceans

Option 2: animals

Option 3: rocks

Option 4: plants

Question : Mushroom rocks are formed due to _____.

Option 1: glacial deposition

Option 2: deposition of sea waves

Option 3: running water erosion

Option 4: wind erosion

Question : Which chemical element of Group 18 of the periodic table is produced by the natural radioactive decay of Uranium in soils and rocks?

Option 1: Oganesson

Option 2: Krypton

Option 3: Radon

Option 4: Neon