Question

which of the following is not true about rocks? a- they are hard. b- they melt easily. c- They are found on earth's crust​

Answer 1

Answer:

a- they are hard- some are hard

b- they melt easily- false

c- They are found on earth's crust-true

Answer 2

Answer:

b- they melt easily

Rocks do not melt easily.

Explanation:

• A solid lump of rock is made up of crystalline crystals of various minerals that have fused together throughout time.
• The minerals might or might not have formed simultaneously.
• Color, hardness, lustre, crystal formations, density, and cleavage are characteristics that aid geologists in determining a mineral's identity in a rock.
• The atomic structure of a crystal essentially determines its form, cleavage, and hardness. Chemical composition is the main determinant of colour and density.
• Since rocks are aggregates of mineral grains or crystals, the characteristics of the various constituent minerals have a significant role in determining the characteristics of the final product.
• By averaging the relative characteristics and occasionally orientations of the different grains or crystals within a rock, these overall qualities are identified.

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