The answer for this question is b
What is "twinkling"? (in telescopes)
A. Flashing of quickly revolving starts
B. Distortion of light in the very large mirrors of refracting telescopes caused by moving air currents
<u>C. Distortion of light by lenses more that three feet across due to sagging class </u>
D. Interference between the lenses of a refracting telescope that distorts the final image
Answer:
Global warming also refers to what scientists think will happen in the future if ... Though there is a steady stream of new studies on climate change, one of the most robust ... Between the two outlooks, less warming means fewer people will have to ... for the rise in average temperatures over the past century.What is global warming, and how is it different from climate change and climate variability? ... Haven't they been skewed by non-climate factors like instrument ... And, if so, doesn't this mean climate is not as sensitive to carbon dioxide.Global warming is happening now, and scientists are confident that ... global warming is, how scientists know it's happening, and how they predict future climate. ... Climate has changed when the planet received more or less sunlight due ... Earth's average surface temperature over the past century primarilyIf the planet accumulates heat, global temperatures will go up. ... Past climate change actually provides evidence for our climate's sensitivity to CO2. ... interesting questions; some are easily answered, some less so: [Has any research been done ... extinctions unless you think that this means global warming is a good thing.
Explanation:
In the United States, a series of reports by the U.S. Global Change Research Program ... Most of the warming over the last several decades can be attributed to human ... have increased over the past two centuries as a result of human activities, ... Physical factors also give rise to substantial spatial variations.The changes observed over the last several decades are likely mostly due to ... the growth rate of climate forcing 1 agents such as carbon dioxide will accelerate. ... in terms of the global mean temperature change that would be expected after a ... central United States during the 10th to 14th centuries than they have been in ...
In biology, the biotic factors pertain to the living components of Earth while the abiotic factors are those non-living chemicals and physical factors. The only choice that is not an interaction between biotic and abiotic factors is the third choice, "C. male elk fighting over a female".