Explanation

Islamic lunar calendar, which begins its count from the Islamic New Year in 622 CE

 Islamic lunar calendar has only 354 or 355 days in its year."

Hijri calendar was started in16 Hijri

Islamic Calendar starts from Hijri

Islamic calendar established by: Hazrat Umar (R.A)

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Explanation

echo plural echoes

echo بازگشت

Explanation

We use Preposition During to say when something happens.

During this year, During this weekend, During this decade etc.

Explanation

Ask for means مانگنا

The boy asked for the love of his mother. 

Explanation

Mother tongue is very helpful for students. 

Easily comprehend means easily understand. 

Explanation

The most popular renewable energy sources currently are:

1.      Solar energy

2.      Wind energy

3.      Hydro energy

4.      Tidal energy

5.      Geothermal energy

6.      Biomass energy

RK12-12-2022

Explanation

The loudness of a sound depends on the Amplitude of the vibration

 Loudness is proportional to the square of the amplitude

if the amplitude is increased by three times, the loudness also increases by nine times.

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ND4-12-2022

Explanation

Explanation

The degree of polynomial is 2 because (x2 =2) (x1y1 =2) (y2 =2) the highest power is 2 each of the veriable..

Explanation

Both plant and animal cells are eukaryotic.

Animal cells have centrosomes , whereas Plant cells have a cell wall.