Across
1. Fuels obtained from dead remains of living organisms. (6 ">

Complete the crossword in figure with the help of the clues:

Across
1. Fuels obtained from dead remains of living organisms. (6

Academic Chemistry NCERT Class 8

Across

1. Fossil fuels

2. Refining

3. Coke

4. Petrol

Down

5. Coal

6. Bitumen

7. Diesel

8. Petroleum

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Updated on: 10-Oct-2022

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Fossil fuels are obtained from(a) remains of non-living materials(b) dead remains of birds only(c) dead remains of insects only(d) dead remains of living organisms
Complete the crossword given in figure with the help of the clues.Across1. Which is generally hard
The practical purpose of classification of living organisms is to(a) explain the origin of living organisms(b) trace the evolution of living organisms(c) name the living organisms(d) facilitate identification of living organisms
Where does all the energy in living organisms originate from?
Petroleum was formed from organisms(a) living on the land (b) living on the plants(c) living in the sea (d) living on the rocks
Can we make coal and petroleum in the laboratory from dead organisms?
Complete the crossword with the help of clues given below.Across1. This is necessary for photosynthesis.3. Term for component present in the cytoplasm.6. The living substance in the cell.8. Units of inheritance present on the chromosomes.Down1. Green plastids.2. Formed by collection of tissues.4. It separates the contents of the cell from the surrounding medium.5. Empty structure in the cytoplasm.7. A group of cells."
Fill in the blanks.(a) The slow process of conversion of dead vegetation into coal is called __________.(b) Coal and petroleum are formed from the dead remains of organisms and are known as __________.(c) The black thick liquid with __________ smell is known as coal tar.(d) During the processing of coal to get coke, coal tar and __________ are also obtained.(e) The process of separating the various constituents of petroleum is known as __________.(f) Excessive burning of fossil fuels is a major cause of __________.
An ecosystem includes :all living organismsnon-living objectsboth living organisms and non-living objectsall living organisms and input of sun's energy
Micro-organisms act upon the dead plants to producesandmushroomshumuswood
Which is the basic requirements of living organisms for obtaining energy?
Biomolecules In Living Organisms
Which living organisms are included in the kingdom Monera?
What is binary fission in organisms? With the help of suitable diagrams, describe the mode of reproduction in Amoeba.

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