Solve the given puzzle and select the correct for the following question.
Which of the following is not hidden in the given puzzle?
A The framework of bone.
B A joint that allows back and forth movement only
C The longest bone of the body.
D A tissue that joins one bone to another bone.
Refer to the given paragraph and answer the following question.
Plant P is the only source of food for the caterpillars of a butterfly species, Q. Plant P depends on the adults of the butterfly species Q for pollination. Infact, animal Q is the only pollinator of plant P in nature. Animal R feeds exclusively on the caterpillars of the butterfly species, Q. Animal R in turn is the prey of animal S.
Which of the following is likely to happen if animal S is hunted to extinction?
A Animal R will continuously feed on animal Q which may lead to coextinction of both P and Q with time.
B The populations of both animals Q and R will increase, however the population of plant P will decrease with time.
C Population of animal R will increase while population of animal Q will decrease with time.
D Both (A) and (C)
Which of the following proves that soil contains air?
A When small amount of soil is heated in a container, then some water vapour is seen escaping from it.
B If we put some water in a soil sample, we could see small bubbles over the soil surface.
C Plant dies in water logged soil because its roots cannot respire as all the air in soil pores is replaced by water.
D Both B and C
Select the odd one out on the basis of type of mechanical force involved.
A Opening the door of a refrigerator
B Playing tug of war
C Hitting the cricket ball with a bat to make run
D Taking out water from a well using rope attached to a bucket
Kavita puts some sand into a beaker filled with water and stirs it. She has to separate water from the mixture of sand and water. What should she do?
(A) Evaporation followed by sedimentation
(B) Filteration followed by evaporation
(C) Sedimentation followed by decantation
(D) Decantation followed by filteration
Hello,I need the reasoning for all the options.