Match the following: Column A Column B 1. Understoreys a. Carbon dioxide 2. Food Chain. b. Effect of deforestation 3. Transpiration c. Process of eating and being eaten 4. Depletion of the water table. d. The process of releasing water from plants 5. Greenhouse gas. e. Layers of shorter trees under the canopy

1. e The crowns of the tall, medium-sized and small-sized plants create different horizontal layers in the forest. The layers of shorter trees that grow under the shade of the canopy are called the understorey. 2. c The process of the transfer of energy from the sun to plants and other organisms is called the food chain. In a food chain, energy is transferred from producers to decomposers via consumers. 3- d The process of the loss of water from leaves through stomata is called transpiration. Through this process, plants release a large amount of water into the atmosphere. 4- b Cutting down trees (taller than shrubs) is called deforestation. Deforestation leads to the depletion of the water table as it decreases the effective area for the seepage of water. 5 - a Carbon dioxide is the main greenhouse gas. In the absence of plants, the amount of carbon dioxide released into the environment increases. This greenhouse gas traps the heat from the sun and leads to global warming. Column A Column B 1. Understorey e. Layers of shorter trees under the canopy 2. Food Chain, c. Process of eating and being eaten 3. Transpiration d. The process of releasing water from plants 4. Depletion of the water table. b. Effect of deforestation 5. Greenhouse gas. a. Carbon dioxide

E M B I B E

Interactive Science 7>Chapter 17 - Forests: Our Lifeline>SUMMATIVE ASSESSMENT>Q 5

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Tidal forests are found along _____.

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Important Questions on Forests: Our Lifeline

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Interactive Science 7>Chapter 17 - Forests: Our Lifeline>SUMMATIVE ASSESSMENT>Q 1

Forest is an important natural resource.

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Interactive Science 7>Chapter 17 - Forests: Our Lifeline>SUMMATIVE ASSESSMENT>Q 2

Forests are natural air purifier.

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Interactive Science 7>Chapter 17 - Forests: Our Lifeline>SUMMATIVE ASSESSMENT>Q 3

The Chipko Movement was aimed at checking soil erosion.

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Interactive Science 7>Chapter 17 - Forests: Our Lifeline>SUMMATIVE ASSESSMENT>Q 4

Forests maintain humidity and rainfall of a place.

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Interactive Science 7>Chapter 17 - Forests: Our Lifeline>SUMMATIVE ASSESSMENT>Q 5

Animals and plants in a forest do not depend on one another.

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Interactive Science 7>Chapter 17 - Forests: Our Lifeline>SUMMATIVE ASSESSMENT>Match the following

Match the following:

Column A	Column B
1. Understoreys	a. Carbon dioxide
2. Food Chain.	b. Effect of deforestation
3. Transpiration	c. Process of eating and being eaten
4. Depletion of the water table.	d. The process of releasing water from plants
5. Greenhouse gas.	e. Layers of shorter trees under the canopy