Question

1. What is rust?
2. What is the shape of a sugar crystal?
3. Define crystal.​

Answer 1

Answer:

1. $\huge \green \underline {RUST :-}$ $a reddish-brown substance that forms on the surface of iron, etc., caused by the action of air and water}$
2. $\huge \red \underline{The shape of sugar Crystal:-}$ If you look closely at dry sugar, you'll notice it comes in little cubelike shapes. These are sugar crystals, orderly arrangements of sucrose molecules. Under a microscope, you can see that sugar crystals aren't cubes, exactly, but oblong and slanted at both ends.}
3. $\huge \purple \underline {Crystal :-}$ $}a regular shape that some mineral substances form when they become solid$

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Answer 2

Answer:

1. the atmospheric moisture and gases slowly eat away at the surface of the substance is called rust

2. I don't know

3. a piece of the homogeneous solid