Steam is made from boiling things and water vapor is from boiling water.
Answer:
it keeps the heat in and the bugs and flys out
Explanation:
Most likely decreased birth rate and increased emigration.
What is the two coking appliances
It is a covalent bond. Whenever a compound uses such suffixes like mono, di, tri, tetra, and so on, it is a covalent compound- thus having covalent bonds.