Explanation

• Plastic is a synthetic material that is resistant to decomposition and can take hundreds or even thousands of years to break down.
• It is a non-biodegradable material.

The examples of non-biodegradable materials such as:

• Inorganic materials (glass, ceramics, heavy metals)
• Synthetic materials (styrofoam, plastic bags, other plastic things)
• Hazardous materials (detergents, toxic chemicals)
• Industrial waste (empty cans, electricity wires, fused bulbs, broken machine parts)

Explanation

Human blood is red because hemoglobin.

It is carried in the blood and functions to transport oxygen.

It is iron-rich and red in color.

Octopuses and horseshoe crabs have blue blood.

This is because the protein transporting oxygen in their blood, hemocyanin, is actually blue.

Explanation

Oranges are well-known for being rich in Vitamin C.

It is essential for immune function, skin health, and other bodily processes.

While potatoes do contain Vitamin C, oranges are generally considered the best source.

Explanation

Mercury remains liquid at a wide range of temperatures, has uniform expansion.

It is easily visible due to its opacity.

It does not stick to glass, allowing accurate and consistent readings in thermometers.

Explanation

The theory of relativity usually encompasses two interrelated theories by Albert Einstein:

They were proposed and published in 1905 and 1915

E =mc2

C in this equation, the velocity of light

Explanation

Explanation

Acid rain is mainly caused by emissions of Sulfur dioxide and Nitrogen oxide in the atmosphere.

Acid rain mainly Causes health problem like Asthma.

Explanation

An atomic bomb is based on the nuclear reaction known as nuclear fission,

A heavy atomic nucleus splits into two or more lighter nuclei, releasing a large amount of energy in an uncontrolled chain reaction.

The bombs dropped on Hiroshima and Nagasaki were examples of nuclear fission bombs, utilizing uranium-235 or plutonium-239 as the fissionable material. 

Explanation

• Red
• Yellow
• Blue

• Orange
• Green
• Violet

• Red-Orange,
• Yellow-Orange,
• Yellow-Green,
• Blue-Green,
• Blue-Violet,
• Red-Violet

Explanation

Bacteria are single-celled microorganisms that can exist in various environments, including the human body.

They can be both beneficial (like in digestion) or harmful (causing infections).