Large-scale human impacts on the climate may have started how long ago?
A) only 200 years ago
B) 2,000 years ago
C) 8,000 years ago
D) 100,000 years ago
Answer: C
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Although ________ forms naturally in the stratosphere, when produced near the surface it is considered a pollutant with many negative effects
A) nitric acid B) ozone C) smog D) sulfur dioxide
The distance between lines of longitude is equal across the globe
a. True b. False Indicate whether the statement is true or false
Many muscles are named for their location (origin and insertion) in the body, particularly in relation to bones. In what body region would you expect the frontalis muscle to originate?
What will be an ideal response?
How are Danakil, South Africa and the Amazon Rainforest in Brazil connected
A. The Amazon Rainforest provides raw materials, such as timber and medicinal plants, to Danakil's population. B. Oxygen produced from the organisms in the Amazon Rainforest supplies oxygen to Danakil through weather and ocean systems. C. Sand from Danakil travels across the Atlantic Ocean to the Amazon Rainforest to provide the perfect plant fertilizer. D. Farmers living near the Amazon Rainforest are moving to Danakil in search of better agricultural livelihoods as rainforest acreage decreases.