Available Answers

1. 1.

   Look at the picture given below. What do the arrows indicate?

   

2. 2.

   State True or False.

   1. Plants give us food and oxygen.
   2. Consumers can prepare their own food.
   3. Herbivores eat plant parts like leaves, roots, fruits, barks and grasses.
   4. The animals that eat flesh of the animals are known as carnivores.
   5. Scavengers like cockroach feed on both dead plants and animals.
   6. Bacteria is not a decomposer.
3. 3.

   Fill in the blanks.

   pollution	food chain	producers	food
   deforestation	forest fire	photosynthesis	starch

    

   1. All food chains begin with ________, as they can make their own food by the process of ____________.
   2. The ___________ stored in the form of ___________ in plants is transferred to animals when they eat plants.
   3. Excessive hunting of an animal causes its number to reduce, resulting in the disturbance in _________________.
   4. Forests are being destructed to create cities, towns and factories. This is known as _______________.
   5. The addition of these harmful substances to our natural resources is called _______________.
4. 4.

   Tick (√) the correct answer.

   1. Living organisms in our environment that are not visible to our naked eyes are called:
      1. microorganisms
      2. consumers
      3. producers
      4. scavengers
   2. The process in which plants use sunlight to convert water and carbon dioxide into food is known as:
      1. food chain
      2. photosynthesis
      3. deforestation
      4. none of these
   3. The practice of illegal hunting or killing of animals is called:
      1. deforestation
      2. poaching
      3. scavenging
      4. none of these
   4. A sequence that shows how living things in an environment are related to each other as per their feeding habits is called:
      1. food web
      2. photosynthesis
      3. food chain
      4. none of these
   5. The living organisms that feed on plants and other living organisms for their food are called:
      1. producers
      2. decomposers
      3. consumers
      4. none of these
5. 5.

   Give one word for the following:

   1. These types of animals have very sharp cutting teeth and strong grinding teeth.
   2. These types of animals have sharp teeth and claws to grasp and tear the flesh.
   3. These animals do not hunt other animals but feed on the flesh of dead animals.
   4. The addition of harmful substances to our natural resources.
   5. The illegal hunting or killing of animals.
   6. The destruction of forest to create cities, towns and factories.
6. 6.

   Give two examples of each of the following:

   1. Carnivores
   2. Omnivores
   3. Scavengers
   4. Decomposers
   5. Herbivores