Explanation

Lightning provides the high energy needed to break the strong bonds of nitrogen (N₂) in the atmosphere.

This allows nitrogen to combine with oxygen, forming nitrites and nitrates that plants can absorb.

Explanation

Explanation

Step 1: Convert 2.5 × 10^-1 to a fraction

2.5 × 10^-1 = 0.25 = 1/4.

Step 2: Calculate 1/2 + 1/4

To add these fractions, find a common denominator, which is 4. 1/2 = 2/4. So, 2/4 + 1/4 = 3/4.

Explanation

640 × 1.50 = 960

So, the total cost of 640 photocopies at Rs. 1.50 each is Rs. 960.

Explanation

Fantasy means کسی چیز کے بارے میں ، حقیقت نہیں

Actuality means حقیقت یا حقیقی ہونے کی حالت

Explanation

Whole numbers are non-negative integers: 0, 1, 2, 3…

0 is a whole number.

Explanation

Assessment is the broader process of collecting, synthesizing, and interpreting information about learning or performance.

It supports decision-making by identifying strengths, weaknesses, and progress in a learner’s development.

Explanation

System software includes the operating system and core programs that manage hardware and software resources.

It helps the computer run smoothly and provides a platform for application software to operate.

Explanation

Metal is a good conductor of heat, so it quickly transfers heat from the hot object (like tea or soup) to your hand.

Plastic is an insulator, meaning it does not transfer heat well, so it feels cooler to the touch.

Explanation

The square root of 1/4 is:

√(1/4) = √1 / √4

= 1/2