These can detect ripples produced in water by insects.
A) Frogs
B) Whales
C) Pond skaters
D) Fishes
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To detect the leakage of gas from the cylinder the substance added to the gas is……..
Correct option is A) C2H5SH
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Due to vibration of vocal cords sounds are produced. These sounds are produced during …………
Due to vibration of vocal cords sounds are produced. These sounds are produced during Expiration
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Respiratory organs in insects
Respiratory organs in insects trachea
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Insects are included under A) Arthropods
A) Arthropods
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Mustard was growing in two fields- A and B. While Field A produced brown coloured seeds, field B produced yellow coloured seeds.
In field A, the reason for parental trait in consecutive generations of the offsprings is self-pollination. In field B, variation is seen to occur because of recombination of genes as cross...
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i. λ1 are used by a FM radio station for broad casting. ii. λ2 are used to detect bone fracture. iii. λ3 are absorbed by the ozone
i. λ1 belongs to radiowaves. ii. λ2 belongs to X-rays. iii. λ3 belongs to ultraviolet rays. iv. λ4 belongs to infrared radiations. Ascending order of magnitude of wavelengths: λ3 < λ3 < λ4 < λ1
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α-particles scattering experiment helped to detect the existence of the nucleus. The main observation of this experiment is
B) Few no. of alpha particles got deflected.
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These insects population grew due to killing of sparrows in China in 1958.
Answer is (B) Locusts
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One litre of water can fill in cylinder A and two litres of water can fill in cylinder B. Then two litres of gas can fill in
C) both ‘A’ and ‘B’
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Detect the differences in the following statements contained in a rm’s plan.
1. Policy 2. Rule
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