HELP PLEASE THIS IS DUE Tell me one physical property of substances and explain what it is.

Denisty

Conductivity

*licks sasha's ear* **whispers** woof.

Explanation:

I honestly don't know. ;-;

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.

the dependant variable is spilled water

the independent is the heat