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प्रश्न
What are decomposers?
उत्तर
Decomposers are micro-organisms such as bacteria and fungi, that obtain nutrients by breaking down the remains of dead plants and animals.
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संबंधित प्रश्न
Explain the role of forest in maintaining the balance between oxygen and carbon dioxide in the atmosphere.
The insects, butterflies, honeybees and birds help flowering plants in ______.
Herbs form the ______ layer in the forest.
The decaying leaves and animal droppings in a forest enrich the ______.
Explain why there is a need of variety of animals and plants in a forest.
In the figure, the artist has forgotten to put the labels and directions on the arrows. Mark the directions on the arrows and label the diagram using the following labels:
clouds, rain, atmosphere, carbon dioxide, oxygen, plants, animals, soil, roots, water table.
In our country, vast tracts of forests are cleared and a single species of plant is cultivated. This practice promotes ______
Who started chipko Andolan?
Given below are a few statements related to biodiversity. Pick those that correctly describes the concept of biodiversity.
i. Biodiversity refers to the different species of flora and fauna present in an area
ii. Biodiversity refers to only the flora of a given area
iii. Biodiversity is greater in a forest
iv. Biodiversity refers to the total number of individuals of a particular species living in an area
Choose the correct option from the following.
Arabari forests of Bengal is dominated by
The branchy part of a tree above the stem is known as
State whether the following statement is true or false. If false, give the correct statement.
Forests influence climate, water cycle and air quality.
State whether the following statement is true or false. If false, give the correct statement.
The forest keeps on growing and changing and can regenerate.
Figure 17.1 shows a part of a forest.
Write any three activities going on in the forest on the basis of this figure.
All the needs of animals living in a forest are fulfilled. Justify this statement in a few sentences.
“Forests are our lifeline.” Write five sentences on this topic.
What is stratification?
Define Stratification.
Visit a forest. Here is a list of points that would make your visit more fruitful.
- Make sure that you have permission to go into the forest.
- Make sure that you can find your way around. Get a map and go along with someone who is familiar with the area.
- Keep a record of the things you see and do. Observations make the visit interesting. Sketches and photographs are useful.
- You may record bird calls.
- Collect different kinds of seeds or hard fruits like nuts.
- Try to recognise various types of trees, shrubs, herbs, etc. Make lists of plants from different places in the forest and of different layers. You may not be able to name all the plants, but it is worth recording and seeing where they grow. Make a record of approximate heights of plants, crown shape, bark texture, leaf size, and flower colour.
- Learn to recognise the animal’s droppings.
- Interview the forest officials and the people of surrounding villages and other visitors.
You must never collect birds’ eggs, and their nests should never be disturbed.
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