Questions

Harmful bacteria in potable water make the water

Which feature of a plant helps to distinguish a monocot from a dicot?

In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

The quest for a _____ life engrosses every human being on this earth. Everyman tends to define a happy life in a _____ individualistic fashion. _____have attempted to define a happy life in various terms. Hedonists have a _____ notion that happiness lies in the _____ of physical appetites.

_____have attempted to define a happy life

The metal that can be cut with a knife is

A ball is dropped from a height of 10 m. It strikes the ground and rebounds up to a height of 2. m. During the collision, the per cent loss in the kinetic energy is

A force of 20 N displaces an object through 2 m and does a work of 20 J. The angle between the force and displacement is

What is the principal focus of a spherical mirror?

Bridgmanite is