Explanation

Magnesium Sulphate (Epsom salt) is a common laxative that helps relieve constipation by drawing water into the intestines.

It works by softening stool and promoting bowel movements when taken in proper dosage.

Explanation

The blood vessels that carry oxygenated blood away from the heart to the body are called arteries

The largest artery is the aorta, which branches out into smaller arteries that distribute oxygenated blood to different parts of the body. 

Explanation

Species is the basic unit of classification.

Species are a group of organisms that are morphologically similar and can interbreed.

1. Kingdom
2. Phylum
3. Class
4. Order
5. Family
6. Genus 
7. Species

Explanation

The atomic number was discovered by Henry Moseley in 1910.

Henry Moseley was an English physicist.

Explanation

Eratosthenes, the ancient Greek scholar is called the 'father of geography'.

He was the first one to use the word geography.

He also had a small-scale notion of the planet that helped him to determine the circumference of the earth.

Explanation

On 21 July 1921, a young surgeon named Frederick Banting and his assistant Charles Best

On 11 January 1922, insulin was first used in the treatment of diabetes

***

Explanation

• Carbon dioxide (CO2) is a major greenhouse gas.
• It responsible for about 65% of the Earth's greenhouse effect.

Explanation

Galvanized iron sheets have a coating of zinc. 

Galvanization is a process where a layer of zinc is applied to iron or steel to protect it from rusting, making "galvanized iron" essentially iron coated with zinc

Explanation

Nichrome, an alloy of nickel and chromium.

It is used because of its high resistance and ability to withstand high temperatures without oxidizing.

Explanation

Snails are mollusks, belonging to the phylum Mollusca.

They typically have a soft body and, in many cases, an external shell.