Our Home: Earth, a Unique Life Sustaining Planet
CBSE · Class 8 · Science
Most important questions from Our Home: Earth, a Unique Life Sustaining Planet for CBSE Class 8 Science board exam 2026. MCQs, short answer, and long answer questions with marks.
Interactive on Super Tutor
Studying Our Home: Earth, a Unique Life Sustaining Planet? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for important questions and more.
1,000+ Class 8 students started this chapter today
Sample Questions
Which of the following make Earth suitable for life? (Select all correct answers)
Show answer
Right distance from Sun, Presence of atmosphere, Magnetic field, Presence of liquid water
Earth's right distance from Sun, atmosphere, magnetic field, and liquid water all contribute to making it habitable. Very high gravity would actually be harmful to life.
The ozone layer protects Earth from harmful ultraviolet rays.
Show answer
True
The ozone layer acts like a shield, blocking harmful ultraviolet (UV) rays from the Sun that can damage living cells.
Which of the following are parts of Earth's system that support life?
Show answer
Atmosphere (air), Hydrosphere (water), Biosphere (living things), Geosphere (rocks and soil)
All four spheres - atmosphere, hydrosphere, biosphere, and geosphere - work together to support life on Earth.
What happens when male and female gametes join in sexual reproduction?
Show answer
They form a zygote
When male and female gametes join during fertilization, they form a zygote which develops into a new organism.
+40 more questions available
Practice AllFrequently Asked Questions
What are the important topics in Our Home: Earth, a Unique Life Sustaining Planet for CBSE Class 8 Science?
How to score full marks in Our Home: Earth, a Unique Life Sustaining Planet — CBSE Class 8 Science?
How many important questions are there in Our Home: Earth, a Unique Life Sustaining Planet?
Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Our Home: Earth, a Unique Life Sustaining Planet
Practice Quiz
Test yourself with a quick quiz
Revision Notes
Key points for last-minute revision
Formula Sheet
All formulas in one place
Chapter Summary
Understand the chapter at a glance
Concept Maps
See how topics connect visually
Study Plan
Step-by-step plan to ace this chapter
Flashcards
Quick-fire cards for active recall
Syllabus
What topics to cover
NCERT Solutions
Every textbook question solved step by step
For serious students
Get the full Our Home: Earth, a Unique Life Sustaining Planet chapter — for free.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for CBSE Class 8 Science.