User Forum

Read the given passage and select the option which correctly fills any three of the blanks. (i) is the main source of water on Earth however (ii) , is considered more pure than (i) as it is free from contaminants. City roads flooded with water, dry up due to the process of (iii) . Rate of (iii) increases with (iv) in temperature. The process of (v) changes water vapour present in air into water. (iii) and (v) help in circulating water between hydrosphere and atmosphere.

A(i)-Groundwater, (ii)-Rainwater, (iv)-Decrease
B(ii)-Underground water, (iii)-Evaporation,(v)-Transpiration
C(i)-Surfacewater, (ii)-Groundwater,(iv)-Decrease
D(ii)-Groundwater, (iv)-Increase,(v)-Condensation

A pendulum takes 0.8 seconds to swing from the extreme points A to B. What will be the time taken for the pendulum to make 15 oscillations ?


A12 seconds
B24 seconds
C36 seconds
D48 seconds

Read the following statements and select the correct option.
Statement 1 : It is not possible to photograph a virtual image.
Statement 2 : An image is said to be virtual if the reflected or refracted rays are diverging in nature.

A Both statement 1 and statement 2 are true and statement 2 is the correct explanation of statement 1.
B Both statement 1 and statement 2 are true but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true but statement 2 is false.
D Statement 1 is false but statement 2 is true.

'X' is a gas which is required by producers to prepare their food. Select the incorrect statement regarding 'X'.

AIt constitutes 0.03% of air in atmosphere.
BIt turns lime water milky.
CIt is an important component of fertilisers.
DIt extinguishes fire.

An equilibrium state of a body is considered if all the forces acting on it

A Are in the same direction
B Are equal in magnitude
C Have zero resultant
D Can be arranged in pairs.

Select the INCORRECT statement.

A Overcooking destroys nutrients hence food should not be overcooked.
B All vegetables and fruits must be cooked before eating.
C Sugaring, salting and oiling food slow down growth of microbes on it.
D All of these

Select the option that on unscrambling gives the name of a clothing item worn in summers.

A RFMUFLE
B WASTERE
C OSTHSR
D NADGCRIA

Study the given classification chart of plant fibres. Plant fibres

Which of the following holds true for P, Q, R and S?

AP could be flax or jute.
BP and Q are biodegradable whereas R and S are non-biodegradable.
CQ could be coir whereas S could be sisal.
DBoth A and C

Select the option that correctly satisfies the same relationship based on their feeding habit.


A Lion : Cow
B Rabbit : Frog
C Cat : Mosquito
D Dog : Buffalo

Select the correct match.

AGinger - Root
BSweet potato - Stem
CCauliflower - Flower
DRadish - Leaves