Explanation

Chess is played on a 64-square checkered board arranged in an 8×8 grid.

The board consists of light and dark squares, with each player having 16 pieces at the start.

Explanation

The penalty kick mark in football (soccer) is placed 11 meters (12 yards) from the goal line.

It is the spot from where a penalty kick is taken after a foul inside the penalty area.

Explanation

The standard length of a table tennis table is 9 feet (2.74 meters).

The width is 5 feet (1.525 meters), and the height from the ground is 2.5 feet (76 cm).

Explanation

"Anything" is used in negative sentences and questions.

Anything means کچھ بھی

"Something" is generally used in positive statements.

Explanation

Hockey is an outdoor game played on a field or ice rink.

Snooker, squash, and table tennis are commonly played in indoor environments.

Explanation

When current flows through a bulb, electrical energy is converted into both heat and light energy.

The filament inside the bulb heats up due to resistance (Joule heating) and emits light as a result.

Explanation

لاحقہ وہ لفظی جز ہوتا ہے جو کسی لفظ کے آخر میں آ کر اس کا مفہوم بدل دیتا ہے۔"

گری ایک لاحقہ ہے جو پیشے یا خصوصیت کو ظاہر کرتا ہے، جیسے "ساہ گری" (سوداگر کا پیشہ)۔

Explanation

Demonstration method is most effective for higher-level education, where students can grasp complex concepts through visual and practical examples.

It helps in science, technology, and skill-based subjects by enhancing understanding through observation.

Explanation

Respiration is the process where oxygen is used to break down glucose, releasing energy (ATP) and producing carbon dioxide as a byproduct.

It occurs in the mitochondria.

It is essential for all living organisms.

Explanation

Using the identity:

a³ + b³ = (a + b)³ - 3ab(a + b)

Given:

a + b = 4

ab = 3

Substitute the values:

a³ + b³ = (4)³ - 3(3)(4)

= 64 - 36

= 28