<span> A. a process by which organism keep internal conditions relatively constant despite changes in external conditions. </span>
B I think(sorry if you get this wrong)
Answer:
option D
Explanation:
more than half of global population growth between now and 2050 is expected to occur in Africa. Africa has the highest rate of population growth among major areas
Answer:
The correct option is that (Too many greenhouse gases in the atmosphere may block heat from escaping into space and trap too much heat next to the Earth's surface causing global warming).
Explanation:
Increased human activities has caused the continuous release of many toxic and harmful substances into the environment. This has caused varying degrees of environmental pollution.
The increased demand of fossil fuels for generation of energy in industries, deforestation and even farming has lead to increase in the release of greenhouse gases to the atmosphere. Example of greenhouse gases include:
--> carbondioxide
--> methane
--> chlorofluorocarbons
--> nitrous oxide.
These are called greenhouse gases as they have the ability to absorb hear energy emitted from earth surface and reflecting it back to the earth surface. The trapping of this heat increases the earth's atmospheric temperature leading to a weather condition called GLOBAL WARMING. The effect of this weather change includes:
--> higher sea levels,
--> Extreme or severe weather such as storm, floods, drought and heat waves,
--> acidic ocean
-->higher death rates.
