-Are two atoms of the same element identical? -Can water stay liquid below zero degrees Celsius?
-Can you light diamond on fire?
-How bad of an alcoholic do you have to be to have your brain affected?
-How can glass be a liquid if it's so hard?
-How do I know if something is an acid so I can avoid eating it?​

-Are two atoms of the same element identical?

no two atoms of the same element are not identical.as its nature will be different

-Can water stay liquid below zero degrees

Celsius?

no it can not be 0°c as its freezing point is 0°c

-Can you light diamond on fire?

yes I think.its refractive index is high.

y

-How bad of an alcoholic do you have to be to have your brain affected?

it causes pressure on mind .

-How can glass be a liquid if it's so hard?

by heating with silica.

-How do I know if something is an acid so I can avoid eating it?

it gives hydrogen ion when dissolves in water.

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1 a

2 d

3 a

4 c

explanation:

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.