Q224
The periodic rise and fall of the sea level on the earth, gives rise to tides. This is related to
A.
the position of the moon with reference to the earth and the gravitational pull exerted mainly by the moon and partly by the sun
AnswerB.
infrared rays from the sun
C.
ultraviolet rays from the sun
D.
None of the above
Answer: Option A
Solution
Answer: Option A
Solution:
Tides are the short term periodic rise and fall of the world's oceans. They are due to the combined effects of gravitational attraction and the revolution of the Earth-moon system about its common centre of mass.