Ashish went to visit his grandfather in his village. He told her grandfather to plant crops like pulses, gram, beans, etc. for a year then follow with regular crops. It will increase the crop productivity.
(a) What will you name the process suggested by Ashish?
(b) What are noted benefits of this process?
(c) What values are shown by Ashish ?

Vivek went to visit his grandfather in village where he saw that his grandfather's field of wheat is infected with fungus but no one is aware of this. Vivek told him that he should use an antifungal agent in his fields to stop this infection?
(a) What is fungus?
(b) Can fungus only cause disease or can it be helpful also?
(c) What values are shown by Vivek?

1. (a) Identify the following figure and label the parts marked as A and B.

(b) Which position of stomata-open or closed, has been shown in the figure?

Nitrogen is an essential nutrient for plants growth. But farmers who cultivate pulses as crops like green gram, bengal gram, black gram, etc., do not apply nitrogenous fertilisers during cultivation. Why?

Show with the help of a sketch that the plants are the ultimate source of food.

Carbon dioxide and .............. synthesize .................

The food synthesised by the plants is stored as ________________

Solar energy is converted into chemical energy during photosynthesis.

What would happen if all green plants are wiped from earth?

Unscramble the following terms related to modes of nutrition:
(i) RASPAEIT,(ii) ROPEHYSTAp, (iii) TOROPHAUT, (iv) SIBIOMSIS.

Have you seen or heard of plants that can eat animals?

What do you understand by saprotrophic mode of nutrition?

Photosynthesis requires chlorophyll and a few other raw materials. Add the missing raw materials to the list given below: 12. Water, minerals, (a) __________ (b) ____________

(a) Draw a schematic diagram showing photosynthesis.
(b) What are the products of photosynthesis?
(c) Name the gases utilized and liberated in photosynthesis.
(d) Can all plants do photosynthesis?

Asha went to visit her grandfather in his village. He was having a serious discussion with his fellow members regarding the productivity level of crops for present year. They all were worried about how to increase the productivity of crop Asha listened to this and then suggested to the group that the reason may be decreased level of minerals in soil.
She told her grandfather to plant crops like pulses, gram, beans, etc., for a year then follow with regular crops. This will increase the crop productivity?
(a) What will you name the process suggested by Asha? Why is there decrease in crop productivity?
(b) What are noted benefits of this process? Will the results be as what Asha expressed?
(c) What values are shown by Asha?

Wild animals like tiger, wolf, lion and leopard do not eat plants. Does this mean that they can survive without plants? Can you provide a suitable explanation?

Harish went to visit his grandfather in village where he saw that his grandfather's field of wheat are infected with fungus but no one is aware of this. Harish rushed to his grandfather's side and told him that the field have been infected with fungi. He should use an antifungal agent in his fields to stop this infection.
(a) What is fungus?
(b) Can fungus only cause diseases or can it be helpful also?
(c) What values are shown by Harish?

Describe the process by which plants prepare their food using different raw materials.

Which one of the following is parasite?

The ultimate source of food on earth is

Pitcher plant traps insects because it

Organisms which prepare food for themselves using simple naturally available raw materials are referred to as

Lichens

Cuscuta

Tiny pores present on the surface of the leaves are called ..................