Radon is a "naturally occurring gas" which is found in most soils and rocks and also can cause "lung cancer".
<u>EXPLANATION:</u>
Radon is a "chemical element" which is found to be tasteless, odorless, colorless, and highly radioactive. Due to the radioactive nature of radon, it is very dangerous and causes lung cancer.
Apart from the soils and rocks, the residues of radon could be found on petroleum, spring water and hot springs.
It is True! Because The Homestead Act granted 160 acres of untouched land to the immigrants coming to the U.S. so they could farm and grow crops to ship to the bigger cities. If they showed up with $10 they would get 160 acres of land in the west.
True because if the climate is warm you wouldn't build a house with heating and then humans have built many things that cause the climate to change like cars
