Join ExamsbookAnswer : 4. "one pest by another"
Biological control is to check growth of5
Q: Biological control is to check growth of
- 1plantsfalse
- 2animalsfalse
- 3weedsfalse
- 4one pest by anothertrue
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Answer : 4. "one pest by another"
Explanation :
Answer: D) one pest by another Explanation: Biological Control: This method is very effective. One pest is destroyed by another organism. For example the aphids are killed by lady beetle. The prickly pear is eradicted by cochineal insect. Here the advantage is, one does not use harmful chemicals which may get into the host plants.
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Since Nithya and Suganya exchange places, so Rita’s new position is the same as Monika’s earlier position. This position is 17th from the right and 10th from the left. Therefore Number of girls in the row = (16 + 1 + 9) = 26.