c. Answer the following questions.
1. Why are coal and petroleum known as fossil fuels ?
2. How is coal formed ?
3. How is petroleum formed?
4. How minerals and rocks are useful to us?
5. How can we conserve coal and petroleum ?
Answers
Answer:
1- because it's fossil fuels.
2-it's formed coally
3- petroleum is formed petrolleumly
4- it's useful to us by useful means
5- yes we can conserve coal and petroleum.
madarchod ki bacchi yeh sab toh Book main hi mil jata hain yaha kyu puch rahi hain.
Answer:
1 - . These fuels are called fossil fuels, since they are formed from the remains of dead animals and plants.
2 - Coal is formed when dead plant matter decays into peat and is converted into coal by the heat and pressure of deep burial over millions of year
3- petroleum was formed from the remains of ancient marine organisms, such as plants, algae, and bacteria. ... Over millions of years under high pressure and high temperature,
4 - Rocks and minerals are all around us! They help us to develop new technologies and are used in our everyday lives. Our use of rocks and minerals includes as building material, cosmetics, cars, roads, and appliances. ... Rocks and minerals are important for learning about earth materials, structure, and systems.
5 - The steps which can be taken to reduce the consumption of coal and petroleum products are:
(i) Switch of the lights, fans, television and other electrical appliances to save electricity.
(ii) Use energy efficient electrical appliances to save electricity. This can be done by using CFL and Fluorescent tube lights.
(iii) Use stairs to climb at least up to three floors of a building instead of taking a lift to save electricity.
(iv) Pressure cookers should be used for cooking food to save fuels like Kerosene and LPG.
(v) Solar cookers should be used to cook food whenever possible.
Explanation:
hope it helps