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Refer to the given figure and select the correct statement regarding it.


A P is selectively permeable whereas S is freely permeable to small molecules.
B Q contains the green pigment molecules and is the site of dark reaction during photosynthesis.
C R is a green coloured, agranular substance where dark reaction takes place during photosynthesis.
D R is the site of dark reaction whereas Q is the site of light reaction during photosynthesis.

A floor has a maximum loading capacity of 5 kN m^-2. Which of the following is allowed on this floor? (Take g = 10 N kg^-1)

AAn elephant weighing 50 kN stands on 4 legs with each foot covering 4000 cm² of the floor.
BA 50 kg lady wears a pair of high heel shoes, each shoe has a contact area of 9 cm² with the floor.
CA 100 kg washing machine stands on a surface area of 6500 cm².
DA designer's table weighing 1000 N stands on 3 legs, each leg has a contact area of 0.1 cm² with the floor.

Which of the following best shows the revolutions of Earth and Moon around Sun and Earth respectively?

A
B
C
D

The given graph shows measurements of different types of blood vessels P, Q and R. Select the incorrect statement regarding these vessels.


ABlood vessels of type P have valves.
BBlood vessels of type Q distribute blood from the heart to different parts of the body.
CR represents a capillary which forms an artery and it has thick walls.
DAll of these

The given diagram shows a prism whose one surface is reflecting. Now consider different angles given in column I and corresponding values in column II. Match column I with column II and select the correct option from the given codes.



AP - (i), Q - (ii), R - (iii), S - (iv)
BP - (ii), Q - (i), R - (iii), S - (iv)
CP - (i), Q - (iv), R - (ii), S - (iii)
DP - (ii), Q - (iv), R - (i), S - (iii)

The given figure shows layers of Earth. Select the correct statement regarding it.


AP and Q are liquid layers.
BLayer above R is called crust.
CLayer S makes up most of the total Earth’s volume.
DAll of these

Different types of sheets are placed between Nisha, Sahil, Ankit and Ruby.
Sheets Q and S allow light to pass through them. Sheets P and R are opaque. Select the incorrect statement among the following.


A Nisha cannot see Sahil.
B Sahil can see Ankit.
C If sheet S is removed then Ruby cannot see Ankit.
D Ankit can see Nisha.

Study the given table carefully and select the correct option.


A Only air, paper and steel are listed incorrectly.
B Only paper is listed incorrectly.
C Only air, butter paper and wood are listed incorrectly.
D Only glass, water and iron are listed incorrectly.

Greenhouse gases cause global warming. Which of the following is a greenhouse gas?

AOxygen
BNitrogen
CCarbon dioxide
DMagnesium oxide

Which of the following mirrors is/are used in solar cooker?

APlane mirrors
BConcave mirrors
CConvex mirrors
DBoth A and B