Explanation

Many past and present athletes typically train or compete in short sprints, and 50 to 60 meters is a common range for explosive speed drills.

This distance allows athletes to develop acceleration and power without reaching full sprint fatigue.

Explanation

A response is the reaction or change in behavior of an organism due to a stimulus.

It helps the organism adapt or react to its environment (like moving away from heat).

Explanation

The human trunk includes:

• Vertebral column: 26 bones
• Ribs: 24 bones (12 pairs)
• Sternum: 1 bone
• Hyoid bone: 1 bone (sometimes included)
• Coccyx: 4 fused bones (counted as 1)

Total: 26 (vertebrae) + 24 (ribs) + 1 (sternum) + 1 (hyoid) + 4 (coccyx, counted as 1) = 58 bones

Explanation

A material that absorbs all wavelengths (colors) of visible light reflects none, so no light reaches your eyes.

This absence of reflected light makes the object appear black.

Explanation

In normal blood plasma, glucose is present at about 0.1% concentration, which is approximately 100 mg/dL.

This level is vital for supplying energy to body cells, especially the brain.

Explanation

The initial running distance varies based on an athlete’s physical capacity, which is influenced by age, gender, and skill level.

These factors determine how much warm-up or sprint distance is suitable for optimal performance and safety.

Explanation

Greenhouses are mainly made of glass to allow sunlight to enter and trap heat inside for plant growth.

The glass panels create a warm, controlled environment ideal for cultivating plants year-round.

Explanation

A Test match is the longest format in cricket.

It is usually played over five days.

Each team gets two innings, allowing time for strategy, endurance, and full play.

Explanation

In the crouch start (used in sprinting), one knee rests on the ground behind the starting line.

The other leg is bent forward, ready to push off at the start signal.

Explanation

In long jump, the standard runway length is typically 36 to 40 meters.

This allows athletes enough distance to gain speed before takeoff.