Why are the days shorter and colder in winter?
A The earth is spinning slower during this time.
B There are more clouds covering the earth and blocking the sun.
C The earth is tilted away from the sun and the sun's rays strike the earth less directly.
D The moon is causing fewer rays to get to the earth.
i am a small kid to understand
Refer to the given dichotomous key and select the incorrect option regarding it.
A P could be Xanthomonas that causes citrus canker in plants whereas Q could be Clostridium that causes tetanus in humans.
B R could be Chlorella whereas S could be Streptomyces.
C S could be Penicillium whereas T could be Leishmania.
D Q could be Mycobacterium that causes tuberculosis in humans whereas S could be Aspergillus.
A student plotted the following four graphs representing the variation of velocity v of sound in a gas with the pressure P for a given temperature. Which one is correct?
What is the reason for this
Megha wants to replace the handle of the frying pan she is using. She goes to the market, where she is offered a choice of several materials. Which of the following materials she should never select for replacing the handle of the frying pan?
since copper is a conductor, she shouldn't use it as a handle as her hand will get burned.
If we live in the plains and suddenly go to high mountain regions, we may experience difficulty in breathing and doing physical exercise for some days.
However, after some days, our body adjusts to the changed environmental conditions on mountains. This is an example of ________.
The given diagram shows nitrogen cycle in the ecosystem. P, Q, R, S and T represent different chemical conversion steps in the cycle.
Which process (P - T) is correctly paired with the organism's group performing that step?
I. P is Nitrobacter
II. Q is bacteria symbiotic with plants
III. R is denitrifying bacteria
IV. S is nitrifying bacteria
V. T is nitrogen fixing bacteria, such as Rhizobium or cyanobacteria
AIII, IV and V
BIV and V
CI, III and IV
DIII and IV
Can somebody explain this diagram to me?
Which of the following is a correct match of the type of house with the area it is most commonly found in?
AIgloo - Kerala
BHouse on stilts - Madhya Pradesh
CHouseboat - Assam
DHouse with sloping roof - Kashmir
None of these slopping house found in hilly area