If these substances become dissolved in the water vapour present in the air then acid rain can form. Acid rain can corrode and kill trees (damaging animal habitats) and wear away older buildings such as those made of limestone.
The name of the giant bubble of charged gas that surrounds the sun is called heliosphere.
A system or network that allows trade is called a market. An early form of trade, barter, saw the direct exchange of goods and services for other goods and services. Barter involves trading things without the use of money.
they erode rocks and stuff like that
