After taking out the onions from the ground, the dried leaves from the top of them are cut by
(D) None of these.
Study the given food web and select the correct number of food chains that consist of only three organisms.
Sandhya observed the Moon from 14 January to 28 January. She noted that the Full Moon appeared on 18th January. Which of the following options most correctly shows the phases of the Moon Sandhya observed on 14th January and 28th January respectively?
Which of the following process of water cycle involves radiation?
is the correct ans 'a'
A low-pressure condition is formed during cyclones over a region because of
Arelease of heat by air
Brelease of heat by water vapour
Cabsorption of heat by land surface
Dabsorption of heat by water vapour
i have a doubt in there. is 'b' the ans
An astronaut is in a space station in an environment which has no acceleration due to gravity. The space station has a generator which constantly heats up the air on one side of the cabin.
Which of the following statements is true about the convection currents caused by heating of air by the generator?
ACool air moves in, as the air heated by the generator rises up
BNo conventional convection currents are set up
CHot air, being heavy, merges into the ground and cool air moves in
DA vacuum sets up near the generator, as all the air is sucked by it
In the given figure who among the folowing is the primary consumer?
how do u do this question
Which statement best describes the energy changes that occur while a child is riding on a sled down a steep, snow-covered hill?
AKinetic energy decreases and potential energy increases.
BKinetic energy increases and potential energy decreases.
CBoth potential energy and kinetic energy decrease.
DBoth potential energy and kinetic energy increase.
Find the mode and median of the given data:
12, 14, 12, 16, 15, 13, 14, 18, 19, 12, 14, 15, 16, 15, 16, 16, 15, 17, 13, 16, 16, 15, 15, 13, 15, 17, 15, 14, 15, 13, 15, 14
(A) 15, 15
(B) 17, 12
(C) 15, 18
(D) 12, 13