Explanation

The cerebrum is the largest part of the brain.

It is responsible for higher brain functions, including reasoning, thinking, emotions, and learning.

Explanation

• A plane mirror produces a virtual image, meaning it's not a real image that can be projected onto a screen.
• The image is also upright, meaning it's not inverted or flipped.

Explanation

Copper, silver, aluminum, gold, steel, and brass are common conductors of electricity.

The most highly conductive metals are silver, copper, and gold

Silver is the first-best conductor of heat.

Copper is the second-best conductor of heat.

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

• Clouds float in the atmosphere because they are less dense than the surrounding air. Clouds are formed when water vapor in the air condenses into visible liquid droplets or ice crystals. These droplets or crystals are suspended in the air, and because they are less dense than the air, they float.
• The density of a cloud is typically around 0.05-0.5 g/m³, which is much less than the density of air, which is around 1.2 g/m³. This density difference allows clouds to remain suspended in the air, even though they are heavier than air in terms of their mass.

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

Solar energy is created by nuclear fusion that takes place in the sun.

Fusion occurs when protons of hydrogen atoms violently collide in the sun's core and fuse to create a helium atom.

This process, known as a PP (proton-proton) chain reaction

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ND17-1-2023

Explanation

The human cell contains 46 chromosomes.

These are organized into 23 pairs, where each parent contributes one chromosome to each pair, resulting in a total of 46 chromosomes in most human cells.

This number includes 22 pairs of autosomes and 1 pair of sex chromosomes, determining an individual's sex (XX for females and XY for males).

Explanation

Refraction is the bending of light as it passes from one medium to another (e.g., air to water).

This occurs due to a change in the speed of light in different media.