Four substances P, Q, R and S are mixed in a beaker containing water. The properties of these substances are listed in the given table.
Which of the following methods of separation should be used in sequence to obtain substance S from the mixture?
AFiltration, evaporation followed by magnetic separation.
BSeparating funnel followed by churning.
CFiltration followed by magnetic separation.
DSedimentation and decantation followed by evaporation.
Four different organisms, P, Q, R and S, belonging to the same food chain are used
in an experiment. In the first enclosure, only organisms P, Q and R were put together
while in the second enclosure, only organisms P, R and S were put together.
Based on both the graphs, which of the following is correct?
|Food producer||Prey||Predator||prey and predator|
The correct option is B.
Select the correct match of the following food chains (i) and (ii) with the pyramids d, e and f shown here.
(i) Grass → Goat → Lion
(ii) Lime tree → Caterpillars → Mynas
A(i) - d, (ii) - e
B(i) - d, (ii) - f
C(i) - e, (ii) - f
D(i) - f, (ii) - d
The answer should be B .
The given figure shows test tube X, Y and Z. Which among them will have least amount of oxygen and most amount of carbon dioxide respectively after 4 hours?
Study the given table.
Which of the following is correct regarding X, Y and Z.
AX could be potato whereas Y could be banana.
BY could be radish whereas Z could be carrot.
CX could be onion whereas Z could be mango.
DAll of these
Study the given table and select the incorrect statement regarding P, Q and R.
AP could possess two pairs of wings attached to the breast muscles whereas Q could possess fins to keep the balance of the body.
BR could breathes through lungs whereas Q could breathes through gills.
CP could possess hollow bones whereas Q could possess three pairs of legs.
DBoth B and C
Which of the following sets of plants posses characters similar to the one shown in
A Duckweed, water Lettuce
B Lotus, Water lily
C Hydrilla, Tape grass
D Babool, Kikar