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Study the given flow chart carefully and select the correct option regarding it.


AP could be nylon, R could be rubber.
BS could be rubber, Q could be jute.
CQ could be milk, P could be saffron.
DR could be cotton, S could be rubber.

Study the given table and select the incorrect option regarding P, Q, R and S.


AAnimal P is mostly found in moist or aquatic habitat.
BBody covering Q is also found in snake and crocodile.
CAnimal R is generally found in polar regions.
DAnimal S has heavy and solid bones and hindlimbs modified into wings.

Which of the following statements is incorrect regarding different layers of soil?

A Soil is made up of gravel, sand, humus, water and clay particles.
B Topsoil is rich in organic matter.
C Roots of trees may grow till subsoil.
D Bedrock contains lot of water and humus.

Four burning sticks are placed into different containers P, Q, R and S containing oxygen, carbon dioxide, nitrogen and air respectively. The observations are then noted down. Which of these observations is correct?

--------Container------------------Observation
AP------------------The glowing stick is extinguished immediately.
BQ------------------The glowing stick bursts into flame.
CR------------------The glowing stick bursts into flame.
DS------------------The glowing stick continues to glow for a while.

Mr Roshan, class 11 teacher took various solutions of equal strength and mixed them in different test tubes as shown in the figure.

He asked the students to find the incorrect statement about the given experiment.

ABlue litmus solution turns red in test tubes 1 and 3.
BTurmeric solution turns red in test tube 1.
CChina rose indicator turns dark pink in test tubes 2 and 4.
DPhenolphthalein remains colourless in test tubes 2 and 4.

Which among these children made an incorrect statement?

A
B
C
D

A food chain in an aquarium is shown here.

If the snakeheads were removed, which graph shows the changes in the population of organisms in the aquarium?


A
B
C
D

The girl in the given picture is using trolley to overcome _________.


A The force of attraction between the Earth and the girl
B The force of attraction between the Earth and the trolley
C The force of friction between the trolley and the ground
D The force of friction between the girl and the ground

Which of the following statements are correct?
(i) Safety means being careful and avoiding accidents only while walking on the road.
(ii) There are rules and signs for safety of people on the ship.
(iii) We must use footpath for walking and cyclists must keep to their left.
(iv) We must cross the road as we like anywhere and everywhere.

A (i), (ii), and (iii)
B (ii) and (iii)
C (iii) and (iv)
D (i) and (iii)

Read the given statement and select the correct option regarding X and Y.
X has fixed volume, no definite shape and does not cast a shadow whereas Y has fixed volume, definite shape and casts a shadow.

A X could be milk whereas Y could be glass.
B X could be water whereas Y could be wood.
C X could be mustard oil whereas Y could be iron sheet.
D X could be wood whereas Y could be water.