CBSE Class VIII Science Solutions

Displaying 5 out of 29 questions & answers.
Q1.

Look at the given pictures and identify the method of irrigation. Which method do you think conserves water? Give reasons.

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Q2.

State whether the following statements are true or false.

  1. Kharif crops are generally planted in November.
  2. Urea is a natural fertilizer.
  3. Seed drill is used for the irrigation of crops.
  4. Sprinkler system is a traditional method of irrigation.
  5. Manual sowing of seeds ensures that the seeds get covered with the soil after sowing.
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Q3.

Fill in the blanks.

  1. The process of loosening of the soil is called _______________.
  2. The crops sown in the winter are called _______________.
  3. _______________ sows the seeds uniformly at proper distance and depths.
  4. Manure provides a lot of _______________ in the soil.
  5. _______________ irrigation is a boon in regions where availability of water is poor.
  6. The artificial application of water to the soil is called _______________.
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  1. Ploughing
  2. Rabi crops
  3. Seed drill
  4. humus
  5. Drip
  6. irrigation
Q4.

Match the columns.

COLUMNS ACOLUMNS B
1. Combine harvestera. Weeding
2. Khurpi (Trowel)b. Harvesting and threshing
3. Sicklec. Irrigation
4. Sprinklerd. Rabi crop
5. Wheatf. Ploughing

 

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  1. (b) harvesting and threshing
  2. (a) weeding
  3. (f) ploughing
  4. (c) irrigation
  5. (d) rabi crop
Q5.

Write one word for the following.

  1. Plants of the same kind grown on a large scale for food and other needs
  2. Process of loosening and turning the soil
  3. A tool used to plough the soil
  4. Process of placing seeds in the soil
  5. A chemical that is used to destroy weeds
  6. Process of cutting and gathering of crops
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  1. Crops
  2. Ploughing
  3. Leveller
  4. Showing
  5. Weedicides
  6. Harvesting
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