Explanation

The troposphere is the lowest layer of Earth's atmosphere.

Most of the mass of the atmosphere is in the troposphere.

Most types of clouds are found in the troposphere, and almost all weather occurs within this layer.

Major layers are 

troposphere

stratosphere

mesosphere

thermosphere 

exosphere

Explanation

The return of light or sound waves from a surface.

An image produced by or as if by a mirror. 

Something that brings blame or disgrace It's a reflection on my honesty. 

Careful thought After much reflection, I agreed. 

An opinion formed or a remark made after careful thought.

Explanation

Zoology is derived from two Greek words; Zoo means an animal, and Logos means to study.

Explanation

Overall, the Earth is about 1.59% aluminium by mass

Explanation

Comets are cosmic snowballs of frozen gases, rock and dust that orbit the Sun. 

When a comet's orbit brings it close to the Sun, it heats up and spews dust and gases into a giant glowing head larger than most planets.

Explanation

Answer:

D

The permanant hardness cannot be removed even if it is boiled. The permanent hardness of  water can be removed by the gun's palm tit method, ion exchange resin method, and cleaning soda method. This means that the permanent hardness of water cannot be removed with boiling water.

Explanation

Karl  Benz was a German engine designer and automobile engineer.

His Benz Patent Motorcar from 1885 is considered the first practical automobile.

Explanation

Geology is the study of the various processes that occur on and inside the surface of the earth.

Similarly, Entomology is the branch of biology that deals with the study of insects.

Entomology: علم الحشرات، وہ علم جو حشرات کی ساخت سے تعلق رکھتی ہے

Insects: کیڑے مکوڑے یا حشرات 

Explanation

Elements can be classified as metals, metalloids, and nonmetals.

Explanation

About Jupiter

It is the largest planet in our solar system

It rotates about once every 10 hours

It has 79 satellites

It is the fifth planet 

It is larger than the earth 

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VU FIA PAPER 18-12-2021