Question 32
Complete the crossword puzzle with the help of clues given below:

Across
1.Pollutant which was used in refrigerators and air conditioners. (18)
3.Produced on incomplete combustion of fuels (14)
6.This chemical protects our crops and is washed into water bodies from the field. (9)
Down
2.This layer protects us from harmful ultraviolet rays. (5)
4.1t is essential for combustion. (6)
5.Disease which is caused by drinking contaminated water. (7)
7. River which is famous in India and sustains most of the northern, central and eastern Indian population. (5)

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Solution

$\begin{matrix} Across & Down 1.Chlorofluorocarbon & 2. Ozone 3.Carbon monoxide & 4.Oxygen 6.Pesticide & 5.Cholera 7.Ganga \end{matrix}$

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Question 32
Complete the crossword puzzle with the help of clues given below:

Across
1.Pollutant which was used in refrigerators and air conditioners. (18)
3.Produced on incomplete combustion of fuels (14)
6.This chemical protects our crops and is washed into water bodies from the field. (9)
Down
2.This layer protects us from harmful ultraviolet rays. (5)
4.1t is essential for combustion. (6)
5.Disease which is caused by drinking contaminated water. (7)
7. River which is famous in India and sustains most of the northern, central and eastern Indian population. (5)

Q. Complete the crossword puzzle with the help of clues given below:

Across
1. Pollutant which was used in refrigerators and air conditioners. (18)

Down
2. This layer protects us from harmful ultraviolet rays. (5)

Across
3. Produced on incomplete combustion of fuels. (14)

Down
4. It is essential for combustion. (6)

Down
5. Disease which is caused by drinking contaminated water. (7)

Across
6. This chemical protects our crops and is washed into water bodies from the field. (9)

Down
7. River which is famous in India and sustains most of the northern, central, and eastern Indian population. (5)

Q. Solve the following crossword puzzle with the clues given:

Across
2. Plantation prevents it.
5. Use should be banned to avoid soil pollution.
6. Type of soil used for making pottery.
7. Living organism in the soil.
Down
1. In desert soil erosion occurs through.
Down
3. Clay and loam are suitable for cereals like.
4. This type of soil can hold very little water.
5. Collective name for layers of soil.

Q. Which river sustains most of the northern, central and eastern Indian population?

Question 19

Solve the crossword puzzle given as figure from the clues given below.

Across

1. Lack of nutrient in our diet over a long period causes these diseases. (10)

2. Rice and potato are rich in this type of carbohydrate. (6)

3. Deficiency disease in bones making it becomes soft and bent. (7)

4. The diet that provides all the nutrients that our body needs in right quantities along width adequate amount of roughage and water. (8,4)

5. Deficiency disease with bleeding gums. (6)

6. Disease caused due to the deficiency of iodine. (6)

Down

7. Starch and sugar in our food are rich in this type of energy giving nutrient. (13)

8. The term given to the useful components of food. (9)

9. The disease caused by deficiency of iron in diet. (7)

10. Green leafy vegetables and apples are rich in this mineral (4)

11. Deficiency disease caused due to the lack of $v i t a m i n - B_{1}$ in the diet, (8)

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AcrossDown1.Chlorofluorocarbon2. Ozone3.Carbon monoxide 4.Oxygen6.Pesticide5.Cholera 7.Ganga

$\begin{matrix} Across & Down 1.Chlorofluorocarbon & 2. Ozone 3.Carbon monoxide & 4.Oxygen 6.Pesticide & 5.Cholera 7.Ganga \end{matrix}$