Explanation

Hybridization is the traditional method of crossing different plant varieties to produce improved traits.

It is widely used in agriculture for higher yield, disease resistance, and better quality.

Explanation

Identical twins develop when a single fertilized egg splits into two embryos.

They share the same genetic material.

They are always of the same sex.

Explanation

Explanation

A Wheatstone bridge is an electrical circuit designed to measure unknown resistance accurately.

It works by comparing it with the known resistances in a balanced condition.

Explanation

The Doppler effect is applicable to all types of waves, including sound waves, light waves, and even water waves.

It describes the change in frequency or wavelength of a wave when there is relative motion between the wave source and the observer.

Explanation

The SI unit of temperature as per the International System of Units is Kelvin.

It is represented by the symbol  K.

Note:

Celsius is currently a derived unit for temperature in the SI system, Kelvin is the base unit.

Explanation

In uniform velocity, distance increases linearly with time.

Hence, the distance–time graph is a straight line with constant slope.

Explanation

The moon’s gravitational pull attracts ocean water, causing high and low tides.

This effect is strongest on the side of Earth facing the moon.

Explanation

Rockets move forward in space due to Newton's Third Law of Motion, which states that for every action, there is an equal and opposite reaction. 

When a rocket engine burns fuel, it expels hot gases out of the nozzle.

This expelled gas exerts a force downwards, and in reaction.

The rocket experiences an equal force upwards, propelling it forward.

Explanation

Motion along a straight line occurs in one dimension only.

Examples include a car moving on a straight road or a free-falling object.