User Forum

Study the given graph carefully. What is the aim of the experiment?


A To see if water is needed for plant growth.
B To see if different amount of water affect the growth of seedlings.
C To prove that plants grow taller over time.
D To show that water is needed for germination of seeds.

Which of the following statements holds true about the kind of fertilization as shown in the given figure?

A The female lays hundreds of gametes.
B The female gametes are laid directly on cluster of floating male gametes.
C The male gametes are immobile whereas female gametes can swim in water with the help of long tail.
D Zygote receives chromosomes unequally from the parents, depending upon the number of gametes present in water.

Take a few naphthalene balls, place them in a corner of your classroom and observe them after 4-5 days. The size of the balls have reduced due to ________.

A Melting
B Evaporation
C Sublimation
D Transpiration

Megha does not have dimples in her cheeks whereas her mother has. Her maternal cousin, however, has similar set of dimples. This is due to

(A) Dominant trait

(B) Recessive trait

(C) Learned trait

Study the given figures of a lunar cycle. When is New Moon most likely expected for given lunar cycle?


ANovember 10
BNovember 12
CNovember 8
DNovember 6

Ritika performed an experiment as mentioned below: Four different types of seeds were planted in identical pots filled with the same kind and amount of soil. The pots were placed in a warm, sunny place and were given the same amount of water each day for a month. Which question about these seeds could be answered at the end of the month?

AWhich seeds grew well in the dark?
BWhich seeds produced the tallest plants?
CWhich seeds survived in cold temperatures?
DWhich seeds needed the least amount of water?

What fraction of the figure is shaded ?

(A)

(B)

(C)

(D)

A typical flower has a stalk called P. The uppermost part of stalk is wider and is known as Q. On the top of Q different whorls are present. The outermost whorl consists of green leaf-like structures called R. The inner whorl consists of S which are brightly coloured and scented.
What are P, Q, R and S ?
P-----Q-----R-----S
(a) Thalamus-----Pedicel-----Petals-----Sepals
(b) Pedicel-----Thalamus-----Petals-----Sepals
(c) Pedicel-----Thalamus-----Sepals-----Petals
(d) Thalamus-----Pedicel-----Sepals-----Petals

Manomay conducted an experiment where 4 identical metal balls were allowed to roll down 4 similar curves with surfaces of different texture. The time taken for the ball to come to a complete stop for each of the different surfaces was recorded in the table below.

Which curve has the roughest surface?

A P
B Q
C R
D S

Arrange these as first, second and third class levers?

AA, B, C
BB, A, C
CC, B, A
DC, A, B