The relation between type of leaf venation and type of roots is
(i) The plant having leaves with reticulate venation has tap roots, e.g. sunflower plant.
(ii) The plant having leaves with parallel venation has fibrous roots, e.g. wheat.

Yes, the stem of a plant can be compared with a street with two ways traffic because
(i) It carries water and minerals from the roots to the leaves and other parts of plant in upward direction.
(ii) It takes the prepared food by the leaves to other parts of the plant.

No, a leaf from a potted plant kept in dark will not turn blue-black when tested for the presence of starch. This is because all the stored starch would have been used up by the plant. No fresh starch would be synthesised due to non availability of sunlight.

The parts of a flower are as follows:
(i) Petals
(ii) Sepals
(iii) Stamens
(iv) Pistil

a)
 
b)

c)

Yes, money plant is an example of a creeper. It is because money plants have thin, long and weak stem which cannot stand upright and spreads on the ground.

From the given characteristics, it can be concluded that the given plant is a tree.

Banyan tree has well developed root system inside the soil. It also develops roots from its branches which grow downwards and reach the ground and grow in soil as well.

Tomato and potato are herbs.

The leaf generally performs the function of photosynthesis.

(a) The process demonstrated in the activity is transpiration.
(b) The activity will show best results on a bright sunny day because transpiration is maximum in sunlight.
(c) After a few hours of setting up the activity, one can observe small droplets of water inside the polythene bag.
(d) A major precaution one must take while performing the activity is that the polythene bag should be cleaned and its mouth should be sealed properly. Also, the twig should be fresh with 10-12 leaves.

(a) Sarita can follow the following steps:
(i) Collect plant twig with flowers.
(ii) Press the8m in papers/magazines.
(iii) Change the paper/magazine every day for 5-6 days.
(iv) When plants are well pressed and dried place them on white plane paper sheet.
(v) Stick the plants to sheet with cello tape.
(vi) Try to identify the plant.
(vii) Take help of teachers/seniors for plant identification.
(b) Yes, plants can also be identified on the basis of the nature of their stem and size.
(c) Inquisitive, scientific attitude and love for nature.