Explanation

The ozone layer protects living things from too much ultraviolet  from entering the atomsphere.

Oxygen layer in the atmosphere

Ozone protects us from the harmful ultraviolet radiation of the sun.

Ozone formula: O3

The ozone layer lies approximately 15-40 kilometers (10-25 miles) above the Earth's surface, in the stratosphere.

The ozone layer is depleting: Air pollution

Explanation

Neil Armstrong became the first human to step on the moon.

They did experiments on July 20, 1969.

He walked around for three hours.

Explanation

Lactometer is used for milk

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A lactometer is an instrument that is used to check for the purity of milk by measuring its density.

 lactometer works on the principle of gravity of milk.

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Explanation

The two week long Durzbha-V was conducted at Tarbela and NCTC Pabbi.

The first-ever joint exercise between Pakistan and the Russian military took place in 2016.

Explanation

Denmark's flag is also known as the Dannebrog.

It is recognized as the oldest flag still in use today.

It was officially recognized as the national flag in 1625.

Explanation

Explanation

Explanation

 Shukria Khanum died of cancer in 2017 at the age of 82 in Lahore.

Explanation

The stratospheric ozone layer is Earth's “sunscreen”  protecting living things from too much ultraviolet radiation from the sun.

Oxygen layer in the atmosphere

Ozone protects us from the harmful ultraviolet radiation of the sun.

Ozone formula: O3

The ozone layer lies approximately 15-40 kilometers (10-25 miles) above the Earth's surface, in the stratosphere.

The ozone layer is depleting: Air pollution

ND17-7-2023

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RY4-12-2022

Explanation

Boisterous means ہلڑباز, ادھم مچانے والا

Noisy means شور