Shweta and Farheen are growing girls. Shweta takes lots of fried food like samosas, pakoras and also sweets chocolates, etc. whereas, Farheen takes iron deficient diet. Which of the following disorders are they likely to suffer from, respectively?
AAnaemia and Marasmus
BNight blindness and Obesity
CObesity and Marasmus
DObesity and Anaemia
Which of the following is correct for the parts labelled in the given diagram of the human heart?
A'M' receives deoxygenated blood from all body parts.
B'L' receives oxygenated blood from lungs.
C'O' pumps oxygenated blood to different body parts.
D'N' pumps oxygenated blood to lungs.
Which one of the following pairs is correctly matched?
|A||Air pollution||Avoiding catalytic
into nearby water
|C||Land pollution||Recycling paper
and reusing plastic
|D||Air pollution||Using more diesel /
petrol over CNG
The correct answer is C
Which of the following is not a structural adaptation?
ACamels have long eyelashes to protect their eyes from dust storm.
BSome animals migrate from less favourable to more favourable places in search of food and to escape harsh weather.
CStem of cactus becomes fleshy to store water and also performs photosynthesis.
DSome aquatic plants have reduced root system and dissected ribbon like leaves.
On a cold winter day, Sohan put a room heater near his aquarium, which made water in the aquarium warm but not hot. What could happen due to this?
AFishes would feel more comfortable in warm water due to more availability of oxygen.
BFishes would suffocate due to less availability of oxygen for breathing.
CFishes would die due to decrease in amount of carbon dioxide dissolved in warm water.
DFishes would feel more comfortable in warm water due to decrease in amount of dissolved carbon dioxide.
A few methods of separation are represented with the help of examples as :
W : Alum is added to muddy water to settle the mud particles at the bottom.
X : Salt is separated from saline water without any loss of water.
Y : Sand is separated from gravel at a construction site.
Z : Chilli powder is separated from its mixture with water.
W, X, Y and Z are respectively
ALoading, evaporation, sedimentation and sieving
BFiltration, decantation, sieving and winnowing
CEvaporation, winnowing, sedimentation and sieving
DLoading, distillation, sieving and filtration.