Answer:The primary cause of global warming is human activity that releases carbon into the Tropical deforestation, also by human hands, is another major contributor. sources, and how much comes from burning coal, oil and gas (called fossil fuels). shift of plant and animal ranges; Decline of some plant and animal species.
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Sorry if it's not enough, I'm going off what you said.
Stem cells are being used to replace cells damaged by Chemotherapy or a disease
The correct answer is C. Good luck.
The statement above is TRUE. When approaching a rail road crossing, you need to treat it the same way you treat other intersections.
Trains are part of the traffic we encounter on the road on a daily basis and their rail roads intersect with roads and highways. Because collision with trains are usually fatal, one have to use caution when approaching rail road crossing. Make your sure you scan left and right and then left again. If no train is approaching then cross the rail road. Never stop on a rail road track; if your car stuck, get out of it.
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Proteins are composed of amino Acids