Explanation

A bell works with the principle of working of electromagnetism.

Explanation

A rectifier is an electrical device that converts alternating current (AC),

which periodically reverses direction, to direct current (DC), which flows in only one direction.

Explanation

Earth is the fifth-largest planet in the solar system. Its diameter is about 8,000 miles. And Earth is the third-closest planet to the sun

Explanation

100/12=8.3

Explanation

Data is facts and statistics collected together for reference or analysis.

Explanation

 0.125 is the same as 125/1000. This is because we have to remove the decimal point before creating a fraction. So 0.125 times by 1000 is 125 and at this point the decimal point has been removed.

125/100=1/8

Explanation

Converting from a decimal to a percentage is done by multiplying the decimal value by 100 and adding %.

Explanation

Coefficient is a number used to multiply a variable.

Explanation

Chloroplasts are found in all higher plants. It is oval or biconvex, found within the mesophyll of the plant cell.

The size of the chloroplast usually varies between 4-6 µm in diameter and 1-3 µm in thickness.

Explanation

The ozone layer is a thin part of the Earth's atmosphere that absorbs almost all of the sun's harmful ultraviolet light. "Ozone holes" are popular names for areas of damage to the ozone layer.