Very Easy
What are minerals?
Minerals are substances naturally formed in the Earth.
Define Mining
The process of taking out minerals from rocks buried under the earth's surface is called mining
Gold is an example of ______minerals
Non-Ferrous
_______ is found in China
Antimony
Why has quarrying become a major environmental concern
Due to dust raised from the quarrying activities
Name the types of minerals
Metallic Mineral & Non- Metallic Mineral
Australia is the largest producer of _______ in the world.
Bauxite
What are the Fossil Fuels?
Created by buried organism
Fire is an example of conventional. (TRUE/FALSE)
False (Firewood)
Minerals can be identified on the basis of their physical properties Which one among the following is NOT a physical property with respect to the minerals?
(a) Colour
(b) Presence of Sulphides
(c) Hardness
(d) Density
(b) Presence of Sulphides
Metallic Minerals are classified into two types-
Ferrous & Non- Ferrous
Name some countries in Asia that are world's leading tin producers
China , Malaysia & Indonesia
What are Non Metallic Minerals and give some Examples
Minerals that does not contain Metals are called Non- Metallic -Limestone , Mica & Gypsum
Minerals found in _____ are not accessible.
Antarctica
Define Nuclear Power
It is a method of obtaining energy or electricity from the energy stored in the nuclei of atoms like thorium and uranium through a series of operations.
What are Ferrous Minerals?
Ferrous Minerals are those that contain iron.
Iron ore is mainly found in which continent
Europe
One of a way to save energy at home
Switching off light when not in use
Which gas is present in large quantities in biogas
Methane
Which mineral is not valuable mineral
Titanium
3 ways to extract minerals
Mining , Drilling & Quarrying
Define Minerals
A naturally occurring substance that has a definite chemical composition is a mineral.
Define Ores
Ores are rocks from which minerals can be mined in order to make a profit. Metallic mineral ores are typically found in igneous and metamorphic rock formations that contribute to plateau creation.
Thorium is found in large quantities in the Monazite sands of an important state of India. From the options given, choose the state.
(a) Orissa
(b) Kerala
(c) Maharashtra
(d) Madhya Pradesh
(b) Kerala
Define Wind energy.
The wind is thought to be a limitless source of energy. For a long time, windmills have been used to crush grain and lift water. High-speed winds rotate a windmill that is connected to a generator to create electricity in recent times. In coastal locations and mountain gorges where strong and patterned winds blow, wind farms with batches of such windmills are located. Wind farms in the Netherlands, Denmark, Germany, the United States, the United Kingdom, and Spain are known for generating wind energy.