All-in-One Exam Prep Platform

Explanation

This is a sentence of Present Indefinite Tense.

We use first form (come) in simple sentences of Present Simple Tense.

They always Come back home late. 

Explanation

Brutality means ظلم یا بربریت

Cruelty means ظلم

Explanation

Indolent means کام چور یا سست

Lazy means کام سے جی چرانے والا

Explanation

1 kilocalorie (kcal) = 4184 joules, commonly used in food energy.

1 calorie (cal) = 4.184 joules, so 1000 cal = 4184 J.

Explanation

 The non-protein part of an enzyme is called a cofactor. 

Explanation

Explanation

Orbitals that have the same energy level are called degenerate orbitals.

This concept is important in understanding electron behavior and how they fill atomic orbitals, following principles like the Aufbau principle and Hund's rule.

For example, in a hydrogen atom, all orbitals with the same principal quantum number (n) are degenerate. 

Explanation

Weight is a vector quantity because it has both magnitude (amount of force) and direction (downward, towards the center of the Earth).

Explanation

Carbon has 4 electrons in its outer shell.

It forms 4 covalent bonds, making it tetravalent (valency = 4).

Explanation

Sonar (Sound Navigation and Ranging) uses sound waves to detect and locate objects underwater.

It works by emitting sound pulses into the water

And listening for the echoes that bounce back from objects like submarines, fish, or the seafloor.

Sonar is commonly used in navigation, fishing, and underwater exploration.