Why do clouds tend to reduce temperature during the day but increase temperatures at night??
What will be the ideal response?
ANSWER: During the day clouds shield the surface from the Sun’s radiation, whereas during the night they prevent the loss of surface heat during radiational cooling.?
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The H1N1 swine flu pandemic of 2009-2010 resulted in the immunization of millions of people. When the immunizations were first available, people under the age of 25 or over 65 were given priority. This was done because H1N1
A) was a hazard to people in these age groups, and only these people were vulnerable to infection. B) was most problematic for these age groups, who were most vulnerable to the hazard and thus at the greatest risk. C) was not a hazard to these people, but they were most vulnerable to infection. D) vaccines worked only on people in these age groups.
The seriousness of many environmental problems is a direct result of the large number of humans interacting with the environment.
Answer the following statement true (T) or false (F)
Which area of the human body is most vulnerable to frostbite?
A) chest B) toes C) legs D) arms
Why is the island of Socotra, off the southeast coast of Yemen, considered unique?
A) It is one of the largest islands in the world. B) It is one of the smallest islands containing permanent habitation. C) It contains one of the largest untouched tropical forest preserves in the world. D) It possesses a unique biological habitat, containing hundreds of plant species found nowhere else on Earth. E) It has the lowest elevation of any place on the Earth.