Answer:
For public health and safety, water is treated before it reaches your faucet. Water treatment involves the removal of impurities that make water unsafe for human consumption. This water may flow from a surface water source, or it may be pumped from an aquifer. Hope this helps!!!
Explanation:
Answer:YES
Explanation:A PDA is a type of congenital heart defect. A congenital heart defect is any type of heart problem that's present at birth. If your baby has a PDA but an otherwise normal heart, the PDA may shrink and go away. Some children need treatment to close their PDAs.
4.6 million years ago the earth had less green house gasses so the atmosphere was cooler rather than hotter.
Answer:
The over loaded of peoples is called overpopulation. There will be more crowded and people will be unemployed and It can effect the global warming
Answer:Chromatic observation
Explanation: