The capillary rise is because of ____.

Capillary rise is directly proportional to the ____.

A solar cell is not a ___ diode.

The hydropower facility that does not need a dam is the ___ facility.

What principle pulls water into the penstock?

Biomass ___ produces synthesis gas or syngas.

The ____ shields the earth from harmful ultraviolet (UV) rays.

The oil industry adds ___ to petrol (gasoline) to help engines run more smoothly.

The aperture of a camera can be made wide or narrow by adjusting the ____.

The ___ adjusts the distance between the lens and the film.

For a nearsighted person, the image of a near object is formed at a point ___ the retina.

The ____ is the coloured portion of the eye.

The ____ can vary the thickness of the eyelens.

The banking angle is ___ the mass of the car.

At a constant temperature, the density of a liquid does not depend on ____.

If the diameter of the tube is doubled, the capillary rise will be ___.

Wind power increases to ____ times when the blade length is doubled.

The one which is not a renewable energy is ____.

___ is the main constituent of these fossil fuels.

Tides occur due to the gravitational pull of mainly the ___ on the spinning earth.

____ energy is a type of renewable energy taken from the Earth's core.