Question

Choose & write the most appropriate answer from those given in brackets:
1. Gold in Karnataka is extracted through the process of ____________.
(quarrying; drilling; shafting mining; open-cast mining)
2. Salt is an example of a ________ mineral.
(metallic; non-metallic; ferrous; non-ferrous)
3. Large deposits of thorium are found in ________.
(Rajasthan; Kerala; Karnataka; Jharkhand)

Answer 1

Answer:

1. minning
2. iconic solid
3. kerala

Explanation:

• Gold is obtained by two principal mining methods; placer and vein mining, and also as a by product of the mining of other metals. Placer mining is used when the metal is found in unconsolidated deposits of sand and gravel from which gold can be easily separated due to its high density.
• Another name for salt is ionic solid. These are compounds consisting of a positive ion (generally a metal) plus a negative ion, which can be a non-metal ion or a polyatomic ion, such as NO−3 or SO2−4 . Salts exist in the form of crystalline solids showing a characteristic crystal pattern in the arrangement of the ions
• Kerala is a state in south India on the Malabar Coast and is the twenty-fifth largest state having an area of 38,863 sq. km. The soil in Kerala is acidic, having high phosphate capacity and low water holding capacity, and has the largest reserves of monazite in India. The monazite found is high in thorium content.

Answer 2

Answer:

1. Starting Mining.

2. Non-metallic

3. India

Explanation:

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