Explanation

The pH of pure water (H20) is 7 at 25 °C

pH stands for "Potential Hydrogen"

Explanation

• When an object reflects all the component colors of light, it appears white.
• This is because the object is reflecting all the wavelengths of visible light, which are then perceived by our eyes as white.
• If an object absorbs all seven colors of light (i.e., all the wavelengths of visible light), it appears black.

Explanation

A standard 400-meter oval track usually has 8 lanes in most professional and Olympic-level competitions.

Each lane is about 1.22 meters wide, ensuring fair distance for all runners.

Explanation

Explanation

Follow-on is a rule applied only in Test matches when a team trails significantly after the first innings.

It allows the leading team to make the trailing team bat again immediately.

Explanation

When milk reacts with acid, casein proteins clump together forming long chains called milk fibre.

These fibres can be used to create fabrics and bioplastics.

Explanation

Sesamoid bones are extremely small bones found in within muscles or tendons (e.g., the kneecap or patella).

They protect tendons from stress and wear.

Explanation

Flat bones (e.g., skull, ribs, sternum) are thin and flattened.

They providing protection (e.g., for organs) and broad surfaces for muscle attachment.

Explanation

Flat bones are found in areas like the skull and ribs.

They providing protection and surface for muscle attachment.

They are thin and flattened compared to other bone types.

Explanation

A Circle Kabaddi match lasts 40 minutes, divided into two halves of 20 minutes each.

There is a 5-minute break between the halves for rest and strategy discussion.