For Class 8, 9 & 10

Foundation - a strong base in Physics, Chemistry, Maths & Biology

Concept-first questions with clear model answers across all four subjects, aligned to NCERT. Start early, build the habit, and walk into your board exams, NEET and JEE already ahead.

Showing 1 question for Class 9. Tap a card to reveal the answer.

BiologyNatural Resourceseasy

Why is the atmosphere important for life on Earth?

Reveal answer ↓

What it is

The atmosphere is Earth's protective blanket of air that supplies gases and steadies temperature.

Answer

The atmosphere is a blanket of air that supports life in several ways: it provides oxygen for breathing and carbon dioxide for photosynthesis, keeps the temperature of the Earth steady by preventing sudden day-to-night changes, and shields us from the Sun's harmful ultraviolet rays through the ozone layer. Winds and the water cycle also depend on it.

  • Provides oxygen and carbon dioxide
  • Keeps temperature steady (day and night)
  • Ozone layer blocks harmful UV rays
  • Drives winds and the water cycle

Why learn this

It gives us oxygen, blocks harmful UV rays (ozone) and drives weather - no atmosphere, no life.

💡 Memory trick

The air blanket does 3 B's: Breathe, Block UV, Balance temperature.