Explanation:
Wastewater can contain physical, chemical and biological pollutants. Households may produce wastewater from flush toilets, sinks, dishwashers, washing machines, bath tubs, and showers. ... After treatment at a wastewater treatment plant, treated wastewater (also called effluent) is discharged to a receiving water body.
A. Is covered with savanna.
Answer:
it is said that the Ice Ages began 2.4 million years ago and ended approximately 11,500 years ago.
Explanation:
During this time Carbon-Dioxide (a poisonous and warming gas) levels rose dramatically by about 180 ppm to 280 ppm.
This caused the major retreat of glaciers that ran across continents...
There were other gases but they were in VERY small amounts...
(APART FROM OXYGEN)
Human activities exacerbate the natural greenhouse effect.
<span>The </span>greenhouse effect<span> <span>is the
process by which radiation from a planet's atmosphere warms the planet's
surface to a temperature above what it would be without its atmosphere. If a
planet's atmosphere contains radiatively active </span></span>gases<span> <span>(i.e., </span></span>greenhouse gases) the atmosphere will radiate energy in all directions.
The correct answer between all the choices given is the
first choice or letter A. I am hoping that this answer has satisfied your query
and it will be able to help you in your endeavor, and if you would like, feel
free to ask another question.
