Explanation

Calcium hydroxide is an odorless white powder.

It's used in industrial settings, such as:

sewage treatment,

paper production,

construction,

and food processing

ND5-07-2023

Explanation

Mercury is used in thermometers because It has a high coefficient of expansion so that even a small rise in temperature 

Galileo Galilei is claimed to be the inventor of the thermometer.

ND5-07-2023

Explanation

The Peregrine falcon is the fastest bird – and in fact the fastest animal on Earth – when in a dive. As it executes this dive, the Peregrine falcon soars to a great height, then dives steeply at speeds of over 200 miles (320 km) per hour.

Explanation

Vaccination can be administered through injection, mouth as well as nose.

Vaccination was discovered by Edward Jenner.

Explanation

The Viking program consisted of a pair of identical American space probes, Viking 1 and Viking 2, which landed on Mars in 1976.

Explanation

10th class education: Matric 

12th class education: Intermediate 

14th class education: Graduate 

Explanation

Pine is a type of tree.

Pine means صنوبر کی ایک قسم کا درخت 

Explanation

The land between two rivers is called Doab.

Explanation

Ctrl+N is a shortcut key often used to create a new document, window, workbook, or another type of file

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RY 16-01-2023

Explanation