Dinosaurs and many other species were extinct about ________ years ago.

Related Mcqs:

Basha Dam is to be constructed on___________?

A. River Sutlaj B. River Jhelum C. River Chenab D. None (On Indus River in Gilgit-Baltistan)...

The sky appears blue because the earth’s atmosphere __________?

A. Scatters blue light B. Reflects blue light C. Transmits blue light D. Has actual blue cover...

The type of mirrors used in the headlamp of cars is?

Parabolic concave Plane Spherical convex Cylindrical concave...

During which process of energy exchange does cold air displace warmer air?

A. Convection  B.  Radiation C.  Conduction D.  None of these...

Which layer of the atmosphere reflects radio waves back to the earth’s surface?

A. Troposphere B. Stratosphere C. Ozone layer D. Ionosphere...