Question
Explain how animals dwelling in the forest help it grow and regenerate.
✓
Answer
Various type of animals (herbivores, carnivores, omnivores) live in forests and contribute to food chain. Following activities show how animals help forest grow and regenerate.
- Animals help in dispersal of seeds from one part of the forest to other part.
- Animal's excreta and their dead bodies when decomposed into soil act as manure for the plants.
- Microorganisms convert dead plants and leaves into hum us which is rich in nutrients. Humus in soil provide necessary min
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
What are the global wind patterns?
If you leave a piece of iron in the open for a few days, it acquires a film of brownish substance, called rust.
(i) Do you think rust is different from iron?
(ii) Can you change rust back into iron by some simple method?
(iii) Do you think formation of rust on iron is a chemical change?
(iv) Give two other examples of a similar type of change.
(i) Do you think rust is different from iron?
(ii) Can you change rust back into iron by some simple method?
(iii) Do you think formation of rust on iron is a chemical change?
(iv) Give two other examples of a similar type of change.
Briefly explain that white light is composed of seven colours.
Give one function of each of the following organs,
- Blood vessels.
- Kidney.
- Blood platelets.
- Heart.
Explain the two types of respiration.
Figure shows the distance-time graph for the motion of two vehicles A and B. Which one of them is moving faster?
Figure: Distance-time graph for the motion of two cars
Match the Columns $I$ with Column $II.$
→|
S.No.
|
Column 1
|
Column II
|
|
|
$(a)$
|
Real image
|
$(i)$
|
Cannot be formed on the screen.
|
|
$(b)$
|
Magnified image
|
$(ii)$
|
Upside down image.
|
|
$(c)$
|
Erect image
|
$(iii)$
|
Smaller than the object.
|
|
$(d)$
|
Diminished image
|
$(iv)$
|
Upright image.
|
|
$(e)$
|
Virtual image
|
$(v)$
|
Bigger than the object.
|
|
$(f)$
|
Inverted image
|
$(vi)$
|
Formed on the screen.
|
Differentiate between arteries and veins.
Match the names of organisms in Column $I$ with their organs of breathing given in Column $II.$
→|
|
Column $I$
|
|
Column $II$
|
|
$(a)$
|
Butterfly
|
$(i)$
|
lungs
|
|
$(b)$
|
Earthwarms
|
$(ii)$
|
gills
|
|
$(c)$
|
Sparrow
|
$(iii)$
|
spiracles
|
|
$(d)$
|
Fish
|
$(iv)$
|
skin
|
Describe the process of photosynthesis. What is the role of chlorophyll, water, carbon dioxide, and sunlight in this process?