Available Answers

1. 1.

   When it rains heavily in the city, the roads get flooded, why?

2. 2.

   Check point:

   1. This is not a forest product.
      1. Plastic
      2. Paper
      3. Furniture
      4. Medicine
   2. This is a producer.
      1. Carnivore
      2. Plant
      3. Herbivore
      4. Scavenger
   3. The roof formed by the crowns of tall trees is ___________.
      1. Understorey
      2. Canopy
      3. Floor
      4. None of these
   4. The lowest layer in the understorey is formed by ___________.
      1. Shrubs
      2. Herbs
      3. Trees
      4. Tall grasses
   5. Forests do not prevent ___________.
      1. Floods
      2. Soil erosion
      3. Noise pollution
      4. Seed dispersal
   6. Plants depend on animals for ___________.
      1. Food
      2. Shelter
      3. Safety
      4. Seed dispersal
   7. Microorganisms act upon the dead plants to produce ___________.
      1. Sand
      2. Mushrooms
      3. Humus
      4. Wood
   8. Forests are called nature's green lungs because they ___________.
      1. Release oxygen during photosynthesis
      2. Take in oxygen during photosynthesis
      3. Produce food energy during photosynthesis
      4. Both (a)and (b)
3. 3.

   True-False:

   1. Animals provide nutrients to the plants.
   2. Deforestation takes place due to overgrazing.
   3. Forests reduce noise.
   4. Forests are the kidney of the nature.
   5. Forests provide food and shelter to the organisms.
   6. The rise in amount of water vapour increases the temperature of the atmosphere.
4. 4.

   Fill in the blanks:

   1. Forests are very important _____________ resource.
   2. The decaying leaves and animals droppings in a forest enrich the _____________.
   3. _____________ maintains balance of oxygen concentration in the atmosphere.
   4. The microorganisms feed on the _____________ of dead animals and plants.
   5. We should _____________ forests.
   6. _____________ is the large scale cutting of trees.
   7. Under social forestry, _____________ are used to grow trees.
5. 5.

   Name one decomposer that is not a microorganism.
6. 6.

   Name one microorganism that cause decay of organic matter.