Explanation

Silver is a chemical element with the symbol Ag

and atomic number 47

Atomic radius: empirical: 144 pm

Crystal structure: ​face-centered cubic (fcc)

ND5-07-2023

Explanation

Nitrogen is the chemical element with the  atomic number 7.

Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table

Symbol: N

Explanation

Californium-252 Isotope is used to measure the moisture content of soil in road construction and in buildings.

Californium-252

آاسوٹوپ کا استعمال سڑک کی تعمیر اور عمارتوں میں مٹی کی نمی کی پیمائش کے لیے کیا جاتا ہے۔

Explanation

Electric Field Intensity is a vector quantity, denoted by 'E'. Formula: Electric Field = F/q. Unit of E is NC-1.

AGM 25-12-2022

Explanation

The Dobson Unit is the most common unit for measuring ozone concentration

The Dobson unit is named after Gordon Dobson,

 in the 1920s built the first instrument to measure total ozone from the ground

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All Important Questions Related to "OZONE"

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

There is a hole in the Ozone layer at South Pole

ND17-7-2023

Explanation

Volvox is a motile green algal colony. 

These colonies are called coenobium.

AGM 25-12-2022

Explanation

Explanation

Unit of torque: newton metre (N m)

Explanation

Cassiterite is an ore.

Cassiterite is also called tinstone and has molecular formula of SnO2.

Cassiterite is heavy, metallic, hard tin dioxide that is the major ore of tin.

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