Check Mcqs
Ozone layer protects the Earth from __________ radiations from the Sun.
A. microwaves
B. infrared
C. X-rays
D. ultraviolet
Which layer of the atmosphere reflects radio waves back to the earth’s surface?
A. Troposphere
B. Stratosphere
C. Ozone layer
D. Ionosphere
What is the date when day and night are equal?
A. March 21 and December 24
B. January 14 and September 23
C. March 20 and September 23
D. January 14 and June 22
“Beaufort Scale” is used to measure____________?
A. Wind Velocity
B. Air Pressure
C. Wind Direction
D. Humidity
There were many students ______ all the answers.
A. those knew
B. that knows
C. who knowing
D. who knew