The wide varieties of animals both herbivores and carnivores help the forest to regenerate and grow. The decomposers help in maintaining the supply of nutrients to the wide variety of growing plants in the forest which provide greater opportunities for food and habitat of herbivores which ensure food for carnivores. Therefore, the forest is a dynamic living entity full of life and vitality.

(i) Growing plants and trees in the open area in the school.
(ii) Arrangement for water harvesting.
(iii) Reporting any kind of water leakage in the school.

The uppermost layer of the forest canopy intercepts the flow of rain drops and most of the water comes down through the branches and stems of the trees. From leaves it drips slowly over branches of the shrubs and herbs. All this slows down the speed of raindrops and also slows down the speed of running water.
Thus, forests act as a natural absorber of rainwater and allows it to seep. It helps to maintain the water table throughout the year. In this way, forests help in controlling floods and maintain steady supply of water.

Importance of forests:
(i) Forests provide us with oxygen.
(ii) They maintain the balance of carbon dioxide and oxygen in atmosphere.
(iii)They protect the soil.
(iv) They help in bringing good rainfall in the neighbouring areas.
(v) They are the source of medicines, timber and other useful products and also provide wood.

Due to spoilage of forest trees, the rainwater drops fall slowly on the ground. The forest also slows down the speed of rainwater and allowed it to seep. In absence of tress the rainwater hits the ground directly and may flood the area around it. Roots of forest trees bind the soil together and thus prevents soil erosion also.

Autotrophs: Such living organisms which are capable of manufacturing their own food by the process of photosynthesis by using CO₂ water and light. e.g., green plants.
Heterotrophs: Such organisms which are not capable of manufacturing their own food and depend for their food on other organisms are known as heterotrophs.
Saprotrophs: Such heterotrophs which obtain their nutrition from dead decaying organic material are called saprotrophs.

Decomposers and scavengers are cleaning agents. So, every entity in the forest plays a key and vital role making it a dynamic living entity, full of life and vitality.

The root system helps water to seep down in the ground. It helps to maintain the water table throughout the year. Roots of trees normally bind the soil together and stop the erosion of soil.

Yes, if there are no tress and plants, there will be no photosynthesis. So, no CO₂ of the atmosphere will be used. This will increase the level of CO₂, resulting in the increase of earth's temperature.

The part of the tree with branches is known as the crown. When the crown of tall trees in the forests forms a roof-like covering over the others plants, it is known as a canopy.

Scavengers eat the dead animals and act as the cleaning agents of our environment. Some of these animals (scavengers) are vultures, crows, jackals, hyena, some insects, etc.

No, in any food chain, producers are always at the beginning. It is the producer which provides food to all living organisms. In a food chain, if producer is absent, then there will be no flow of energy. So, we can say that it is not possible to construct a food chain without a producer.

The four factors which are responsible for the destruction of forests are
(i) Construction of roads.
(ii) Construction of buildings.
(iii) Industrial development.
(iv) Increasing demand of wood.

Photosynthesis is the process during which CO₂ is used by the plants and O₂ is released as a products. This O₂ is used by the animals for their respiration and CO₂ is released during it which is again used for photosynthesis by plants. In this way, O₂ - CO₂ cycle is balanced by plants.

Forest products play vital role in socio-economic development. We get food (cereals, pulses, fruits), fire wood, fibre, construction material, industrial products (tannins, lubricants, dyes, resins, perfumes) and products of medicinal importance. It is also the home of diverse wildlife which maintains the ecosystem. Thus, forests are valuable resources.