Food Chain and Food Web

Q. Regarding assertion and reason, choose the right option.

Assertion [A] : Food chains start with photosynthesis and ends with decomposition.

Reason [R]: In an ecosystem, plants produce food and decomposers help in decay of dead matter.

1. A is true and R is false
2. Both A and R are false
3. Both A and R are true and R explains A
4. Both A and R are true but R does not explain A

Q.

______ always occupy the first level of a food chain.

1. producers

2. herbivores

3. carnivores

4. decomposers

Q. _____ is an interconnection of many food chains.

1. Food web
2. Habitat
3. Abiotic factor
4. Biotic factor

Q. Identify the possible link for this food chain.

Grass $\to$ Insects $\to$ ________ $\to$ Snake

1. Lion
2. Frog
3. Goat
4. Human

Q.

The survival of fox depends on

1. Water

2. Rabbit

3. Lion

4. Bear

Q.

A food chain in an ecosystem represents the __________________

1. Biotic components only
2. energy flow and transfer of nutrients
3. Both (a) and (b)
4. abiotic components and decomposers

Q. The man feeds on meat and then the tiger eats the man. The tiger belongs to the ________ of the food chain.

1. Third level

2. Top level

3. Second level.

4. First level

Q. Which of the following statements represent the correct relationship?

1. Nutrients → Consumers → Decomposers → Producers

2. Decomposers → Consumers → Nutrients → Producers

3. Producers → Consumers → Decomposers → Nutrients

4. Nutrients → Producers → Consumers → Decomposers

Q.

Which of the following organism would be the correct option for the following food chains?

Grass --> Rabbit --> _____ --> Hawk

Grass --> Grass hopper --> Frog --> _____ --> Hawk

1. Hen

2. Deer

3. Snake

4. Cow

Q. The top level of the food chain is occupied by carnivores.

1. Banyan and Black Buck

2. Bentinckianicobaricaand Red Panda