Leaves during senescence become yelloe due to the loss of _________

Fill in the blanks : As an effect of earthquake , ecosystem gets destroyed due to the loss of …………..

When concentrated H_(2)SO_(4) comes in contact with sugar , it becomes black due to _________.

Silver articles become black on prolonged exposure to air. This is due to the formation of ______.

When a piece of copper is placed in an aqueous solution of silver nitrate , the colour of the solution becomes blue. This is due to ________.

Rewrite the following wrong statements after corrections: Various essential elements like N, P, K are removed and hence become unavailable to the crops due to earthworms and fungi.

Have you ever taken leave from school due to sickness?

Select the appropriate options and complete the following paragraph (Velocity, independent, initial velocity, dependent, gravity, friction, final velocity , direction ) The motion of any object under the influence of the force of ______ alone is called as free fall. During free fall, there will be no change in the ______ of motion of the object. But there will be a change in the magnitude of ______ of the object due to the gravitational pull of the earth . The acceleration that an object experiences during free fall is ____ of the mass of the object undergoing motion. when a body is dropped freely from a height, its ______ is zero. Whereas when a body is thrown vertically upwards, its ________ is zero .

During which division nucleus becomes elongated, constricts in the middle becomes dumbbell, shaped and divides to form two daughter nuclei.

Fill in the blanks using the correct words given in the brackets Things become weak due to_____