1. c.
2. d.
3. c.
4. a.
5. d.
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Excessive eye movement, more commonly known as twitching, is often caused by strong emotions, such as fear, love, anger, or even excitement. During sleep, this phase is called rapid eye movement(REM). This is the 4th or 5th stage of sleep, depending on the individual.
Earn the points by getting good grades and must pass ap exams.
Answer:
Option D, HFCs and HCFCs are less likely to deplete stratospheric ozone and contribute less to global warming than CFCs do
Explanation:
HFCs have the ability to replace CFCs. They are able to deplete the stratospheric ozone because they have chlorine. However, their ozone depletion potentials (ODPs) is quite less as compared to that of CFCs. HCFCs ozone depletion potentials (ODPs) is between 0.01 to 0.1 while that of CFCs is around 1. Hence, HCFCs deplete less stratospheric ozone and hence their contribution to global warming is comparatively low
Hence, option D is correct
The Law of Cosines is used to find the remaining parts of an oblique (non-right) triangle when either the lengths of two sides and the measure of the included angle is known (SAS) or the lengths of the three sides (SSS) are known. The Law of Cosines states: ... c2=a2+b2−2ab cosC .
