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Refer to the given flow chart.

Select the option which correctly identifies P-S.

AP- Mango tree Q- Fern R- Potato S- Bryophyllum
BP- Maize Q- Onion R- Strawberry S- Sweet potato
CP- Pine tree Q- Moss R- Ginger S- Dahlia
DP- Wheat Q- Banana R- Rose S- Bougainvillea

Study the flowchart carefully.


Which of the following is correct?

Read the following statements and select the option that correctly identifies true (T) and false (F) ones.
(i) Fog is formed when the water vapour condenses into tiny droplets of water in the air.
(ii) The atmospheric pressure is measured with the help of anemometer.
(iii) Places near the sea are expected to be less humid than the places that are far away.
(iv) The condition of lack of food in a region for a long period of time is called famine.

A (i) - T, (ii) - F, (iii) - F, (iv) - T
B (i) - T, (ii) - F, (iii) - T, (iv) - F
C (i) - F, (ii) - F, (iii) - T, (iv) - T
D (i) - F, (ii) - T, (iii) - F, (iv) - T

What happens when a mixture of naphthalene balls and sand is heated?

ANaphthalene balls remain in the China dish.
BNaphthalene gets deposited on the outer end of the funnel.
CThe deposition of sand will take place on the inner cold surface of the funnel.
DSand is left in the China dish.

A ray of light parallel to the floor strikes a plane mirror, which is inclined at an angle 40° as shown in figure. What is the angle of reflection?


A40°
B80°
C50°
D90°

Shooting star is

Aa meteor
Ba meteorite
Ccomet
DAsteroid

Which of the following statements is/are incorrect?
I. When a solute is dissolved in a solvent, the mixture obtained is known as a solution.
II. Sand and water form a homogeneous mixture.
III. A solution which can dissolve more solute is known as an unsaturated solution.
IV. Threshing is a method used to separate lighter components of a mixture from the heavier ones by blowing air.

AI and II
BII and IV
CII, III and IV
DI and III

How many primary consumers are there in the given food web?



A2
B3
C4
D5

Read the following statements and select the correct option.
Statement 1: Water present in oceans and seas cannot be used directly for human consumption.
Statement 2 : Water in oceans and seas have less amount of dissolved oxygen.

ABoth statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
BBoth statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
CStatement 1 is true but statement 2 is false.
DStatement 1 is false but statement 2 is true.

Humans inherit colour of their eyes from their parents. Brown-eyed couple has three blue-eyed children. Which of the following statements gives correct explanation of this situation?
(i) Each parent has an allele for brown eyes and an allele for blue eyes.
(ii) The allele for blue eyes is recessive.
(iii) The probability that their next child will have blue eyes is 75%.
(iv) The probability that their next child will have brown eyes is 50%.

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