Explanation

Wave velocity is the distance a wave travels per second in a given medium.

It is calculated as Velocity (v) = Frequency (f) × Wavelength (λ).

Explanation

Muscle tissues are responsible for movement through contraction and relaxation.

They enable functions like heartbeat, digestion, and voluntary movements.

Explanation

Explanation

Uncontrolled nuclear reactions release ionizing radiation (like gamma rays), which can cause cancer and genetic mutations.

This radiation damages living cells, making such reactions highly dangerous.

Explanation

The style is the neck-like part of the carpel that connects the stigma to the ovary.

The pollen tube grows through the style to reach the ovule for fertilization.

Explanation

Sewage-contaminated water increases the biological oxygen demand (BOD), which depletes the dissolved oxygen levels in the water.

Fish and other aquatic animals rely on dissolved oxygen to breathe. When the oxygen levels drop significantly, it leads to suffocation and death of these organisms.

Explanation

The tundra is a cold, treeless biome, characterized by permafrost and minimal vegetation.

It has low temperatures and short growing seasons, which limit the growth of trees.

Explanation

A runner is a specialized stem that grows horizontally along the ground and produces new plants at its nodes

Strawberries are known to reproduce through these runners. 

2. Mint plant:

While mint can spread quickly, it does so through suckers, not runners. S suckers grow vertically from the root system, whereas runners grow horizontally aboveground. 

3. Lachi:

There's no widely recognized plant called "lachi". This may be a typo or a less common term. 

Explanation

Cytoplasm is a thick, viscous liquid that fills the space between the nucleus and the cell membrane.

It holds and supports the cell’s organelles.

It is the site of many cellular processes.

Explanation

When the size of solute particles decreases, the solubility of a solid in a liquid increases because:

Surface Area Effect: Smaller particles have a larger surface area exposed to the solvent, speeding up dissolution.

Kinetic Energy: More collisions occur between solute and solvent molecules, enhancing solubility.