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Life on Earth I Video Lecture | Crash Course for Class 6

FAQs on Life on Earth I Video Lecture - Crash Course for Class 6

1. What are the different types of ecosystems found on Earth?

Ans. There are several types of ecosystems on Earth, including terrestrial ecosystems like forests, grasslands, deserts, and aquatic ecosystems such as freshwater (lakes and rivers) and marine (oceans and seas). Each ecosystem has its own unique climate, soil, plants, and animals that interact with each other.

2. How do living organisms interact with their environment?

Ans. Living organisms interact with their environment through various means, such as obtaining food, shelter, and water. They adapt to their surroundings, compete for resources, and form relationships with other organisms, like predator-prey interactions and symbiosis, where two different species live closely together and benefit from each other.

3. Why is biodiversity important for life on Earth?

Ans. Biodiversity refers to the variety of life forms on Earth and is crucial for the stability of ecosystems. It helps maintain ecological balance, provides food, medicine, and raw materials, and supports ecosystem services like pollination and nutrient cycling, which are essential for the survival of all living organisms.

4. What role do plants play in the ecosystem?

Ans. Plants play a vital role in the ecosystem as they produce oxygen through photosynthesis and serve as the primary producers in food chains. They provide food and habitat for animals, help in soil formation and stabilization, and contribute to the water cycle by absorbing and releasing water.

5. How do human activities impact life on Earth?

Ans. Human activities, such as deforestation, pollution, and urbanization, significantly impact life on Earth by destroying habitats, reducing biodiversity, and contributing to climate change. These actions can disrupt ecosystems and lead to the extinction of various species, highlighting the need for sustainable practices to protect our environment.

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Oct 02, 2025 Last updated

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