(a) Carnivores feed on dead and decaying plant and animal remains.
(b) Spices such as turmeric and chillies are obtained from animals.
(c) Green plants prepare their food by the process of photosynthesis.
(d) In sweet potato and carrot, stem is the edible part.
(e) Food provides us protection against diseases.
Ans.: (a) False : Decomposers feed on dead and decaying plant and animal remains.
(b) False : Spices such as turmeric and chillies are obtained from plants.
(c) True
(d) False : In sweet potato and carrot, root is the edible part.
(e) True
Q.2: How do green plants make their food?
Ans.: Green plants prepare their food by using carbon dioxide and water in the presence of sunlight and chlorophyll. This process is called photosynthesis.
Q.3: Why do different people eat different types of food?
Ans.: Different people eat different types of food because they have different tastes, habits, lifestyles and availability of food at a particular place.
Q.4: Refer to the following flow chart and write down the correct words for blank spaces (1 to 7).
Ans.: 1. Herbivores
2. Omnivores
3. Goat
4. Lion
5. Crocodile
6. Crow
7. Bear
Q.5: Fill in the blanks.
(a) Plant parts which cannot be eaten are called _________ parts.
(b) Flowers of some plants are edible, e.g., _________ and _________
(c) A young growing plant is called _________
(d) Food helps in _________ and _________ of body.
Ans.: (a) non-edible
(b) cauliflower, broccoli
(c) seedling or sapling
(d) growth, development
Q.6: Match the columns.
|
Column
I |
Column
II |
|
(a) Potato
|
(i) Scavenger
|
|
(b) Vulture
|
(ii) Decomposer
|
|
(c) Cheese
|
(iii) Stem of plant
|
|
(d) Mushroom
|
(iv) Omnivore
|
|
(e) Human
|
(v) Animal product
|
Q.7: What does a food chain show?
Ans.: All living organisms depend on each other for food either directly or indirectly. A food chain shows the interrelationship of plants and animals in terms of food and energy, i.e., a food chain shows the sequence of eating and being eaten. For example, deer eats grass and in turn is eaten by lion as shown below in the form of a food chain.
Q.8: Our parents often tell us not to waste food. It is disrespectful to throw away food. Do you agree with this? Why or why not?
Ans.: Yes, I agree with this. We must not throw away or waste food. There is shortage of food in many places and the quantity of food that is grown is not enough to support the entire population of the world.
Hence, any wastage of such a precious resource is disrespectful and must be avoided.
Q.9: In what ways are the scavengers useful to the environment?
Ans.: Scavengers are those animals which feed on dead animals. They help in keeping our environment clean as they consume dead bodies of animals and dispose them off.
Q.10: Solve the following crossword puzzle with the help of clues given.
1. Living organism which cannot prepare their own food
6. A dairy product
7. Germinated seeds of green gram
Down
2. An animal product
3. Term used for plant part which can be eaten
4. The term used for domestication of birds for eggs and meat
5. A term used for green plants
Ans.:
