Upward and downward movement of ocean water is known as the :
(a) tide (c) wave
(b) current (d) none of the above
Paheli and Boojho measured their body temperature. Paheli
found her’s to be 98.6 °F and Boojho recorded 37°C. Which of
the followng statement is true?
(a) Paheli has a higher body temperature than Boojho.
(b) Paheli has a lower body temperature than Boojho.
(c) Both have normal body temperature.
(d) Both are suffering from fever.
A beggar wrapped himself with a few layers of newspaper on a
cold winter night. This helped him to keep himself warm
because
(a) friction between the layers of newspaper produces heat.
(b) air trapped between the layers of newspaper is a bad
conductor of heat.
(c) newspaper is a conductor of heat.
(d) newspaper is at a higher temperature than the
temperature of the surrounding.
A marble tile would feel cold as compared to a wooden tile on a
winter morning, because the marble tile
(a) is a better conductor of heat than the wooden tile.
(b) is polished while wooden tile is not polished.
(c) reflects more heat than wooden tile.
(d) is a poor conductor of heat than the wooden tile.
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