Question

Q. 4. Give definitions of the following:
(1) Biosphere :
(2) Natural resources :
(3) Humus :
(4) Fossil fuels :​

Answer 1

Explanation:

1. Biosphere:- the part of the earth surface and atmosphere in plants and animals can live

2. Materials that we get from nature( material occuring in nature)

3. A substance made of dead leaves and plants that we put in the ground and help the plant to grow.

4.A nature fuel like coal or oil that was formed million of years ago

Answer 2

Explanation:

1. biosphere:

the part of the earth’s surface and atmosphere in which plants and animals can live

पृथ्‍वी की सतह तथा वायुमंडल का वह क्षेत्र जहाँ सजीव वस्तुएँ रह सकती हैं; जीवमंडल

2. natural resources:

materials or substances occurring in nature which can be exploited for economic gain.

3. humas:

a substance made from dead leaves and plants, that you put into the ground to help plants grow

सड़े पत्तों और पौधों की खाद; खाद मिट्टी

4. fossil fuels:

a natural fuel such as coal or oil, that was formed millions of years ago from dead animals or plants in the ground

कोयला या तेल जैसे प्राकृतिक इंधन जिनका निर्माण लाखों वर्ष पहले ज़मीन में दबे मृत पशुओं या पौधों से हुआ; पुराकालीन ईंधन

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