The reversal of direction of planets is called as

The reversal of electric charge is called

The direction of movement in the phloem is called as ________.

The force which is equal to resultant but opposite in direction is called as __________.

The reversible reaction of formation of carbonic acid from carbon dioxide and water is catalyzed by the enzyme called …………

The reaction that cannot be reversed is called _______.

The radius of orbit of a planet is two times that of Earth. The time period of planet is ........... years.

The acceleration which can change only the direction of velocity of a body is called ____________.

Amorphous solids that exhibit same physical properties in all the directions are called ---------.