Apples
TRUE OR FALSE:
Forests influence climate, water cycle and air quality
TRUE
Which of the following is not prepared from the wood obtained from forest?
(a) Paper
(b) Thermocol
(c) Matchsticks
(d) Plywood
Thermocol
TRUE OR FALSE:
In a forest, trees form the uppermost layer, followed by herbs. The shrubs form the lowest layer of vegetation
False
Which of the following serve as green lungs?
(a) Green pigment of the plants
(b) Forests
(c) Kitchen gardens
(d) Greenhouse gases
Forests
Herbs form the______layer in the forest.
What is lowest or groundcover?
Name any four useful products other than wood, which we get from forests.
Oil
Spices
Gum
Medicines
Paheli wrote a food chain in the following way:
frog →eagle →insects → grass →snake
The chain is not in the correct order. Help her to write the food chain correctly
Grass →insects →frog → snake → eagle
Two friends shared their experiences of their vacation trip to two different forests. Do you think they would have seen the same type of plants and animals during their respective trips? Give reason.
No, they would not have seen the same type of plants and animals. This is so because climatic conditions in the two forests would vary leading to variation in the tvpes of plants and animals found there
What are biotic and abiotic components?
Living and Non-living organismsm.
What is an Ecosystem?
An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts. Biotic factors include plants, animals, and other organisms.
What are decomposers?
an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
Explain how forests prevent floods.
More forests----> More soil----> More water absorbed by the trees----> Less chances of flood
Explain the role of forest in maintaining the balance between oxygen and carbon dioxide in the atmosphere.
Animals release carbon-dioxide during respiration which is absorbed by plants. In this way the oxygen and carbon dioxide cycle goes on. Since forests contain a large number of plants and trees, they help in maintaining the balance between oxygen and carbon dioxide in the atmosphere.
People say that nothing goes waste in a forest. Can you explain, how?
Forests work as a self-sustaining system in nature. Whatever is produced in the forest is utilised by different components of the forest and is naturally recycled. All animals (whether herbivores, carnivores or omnivores) depend ultimately on plants for food. Herbivores eat plants. Carnivores eat herbivores. Omnivores eat both plants and animals. When plants and animals die, their dead remains are decomposed by microorganisms (bacteria and fungi) into nutrients, which are released back into soil. From the soil, these nutrients are absorbed by the roots of living plants. This is called as recycling of nutrients due to which nothing goes waste in a forest
All the needs of animals living in a forest are fulfilled. Justify this statement in a few sentences
Plants and animals in a forest show interdependence. Plants present in the forest fulfill all the needs of animals present there. Plants provide 02 to the animals to respire. They also provide food to all the animals directly or indirectly. Herbivores obtain food directly from plants, carnivores depend on herbivores for food. Trees in forest provide shelter to forest animals. Hence, we can say that all the needs of animals in a forest are fulfilled.
Give any four factors which are responsible for the destruction of forests.
(i) Construction of roads
(ii) Construction of buildings
(iii) Industrial development
(iv) For agricultural purposes to meet the increasing demand of food
How do you see interrelationship coming alive between the biotic and abiotic components in a forest?
Make connections between living and non-living organisms.
How do you see interrelationship coming alive between the biotic and abiotic components in a your physical classroom?
Make connections between the living and non living organisms.
Why do we say Forests our lifleine?
(i) Plants in forest purify air by absorbing C02 and releasing 02 and also maintain a balance between 02 and C02 in the atmosphere.
(ii) Plants in the forest absorb water from the soil through their roots and release it into the air by the process of transpiration which increases the amount of water vapour in the air, helps in cloud formation and rainfall. Thus, forests play an important role in water cycle operating on the earth.
(iii) Forests provide us various products such as wood, gum, medicines fruits, latex, etc.
(iv) The roots of trees in forest bind the soil particles together which helps in preventing soil erosion. Moreover, the raindrops do not fall directly on the forest floor with full force due to presence of plants in different layers in a forest which prevents flooding.
(v) Forests help in maintaining the water table by harvesting the rainwater
Why should we worry about the conditions and issues related to forests
far from us?
There are various reasons for which we should be vigilant about matters related to forests.
Dead trees are the life of the forest. Explain why.