26. What is ecological succession? 27. List out steps in ecological succession. 28. Write two differences between Primary and Secondary Ecological Succession. 29. Write the steps in the water cycle. 30. What is evaporation? 31. What is precipitation?Give examples. 32. What is Transpiration? 33. What is condensation? 34. Write the steps in the carbon cycle . Which is the biggest reservoir of the carbon cycle. 35. Which process allows plants to take up carbon in the form of carbon dioxide to prepare its food?

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26. What is ecological succession? 27. List out steps in ecological succession. 28. Write two differences between Primary and Secondary Ecological Succession. 29. Write the steps in the water cycle. 30. What is evaporation? 31. What is precipitation?Give examples. 32. What is Transpiration? 33. What is condensation? 34. Write the steps in the carbon cycle . Which is the biggest reservoir of the carbon cycle. 35. Which process allows plants to take up carbon in the form of carbon dioxide to prepare its food?

Answer 1

26. Ecological succession is the process of change in the species structure of an ecological community over time. 27. The steps in ecological succession include: Nudation, Invasion, Competition and coaction, Reaction, and Stabilization. 28. Primary succession occurs in essentially lifeless areas, while secondary succession is a process started by an event that reduces an already established ecosystem. 29. The water cycle involves the following steps: Evaporation, Condensation, Precipitation, and Collection. 30. Evaporation is the process by which water changes from a liquid to a gas or vapor. 31. Precipitation is water released from clouds in the form of rain, freezing rain, sleet, snow, or hail. Examples include rain, snow, sleet, and hail. 32. Transpiration is the process where plants absorb water through the roots and then give off water vapor through pores in their leaves. 33. Condensation is the process by which water vapor in the air is changed into liquid water. 34. The carbon cycle involves the following steps: Carbon dioxide in the atmosphere is absorbed by plants and algae for photosynthesis, Carbon from the plants and algae is then transferred to animals when they are eaten, The carbon is returned to the atmosphere as carbon dioxide when plants and animals respire, or when plants and animals die and decompose, The burning of fossil fuels also releases carbon dioxide into the atmosphere. The biggest reservoir of the carbon cycle is the deep ocean. 35. Photosynthesis is the process that allows plants to take up carbon in the form of carbon dioxide to prepare its food.

Answer 2

## Step 1: Ecological succession is the process of change in the species structure of an ecological community over time. It is a series of environmental changes that occur in all ecosystems. The time scale can be decades (for example, after a wildfire), or even millions of years after a mass extinction. ## Step 2: The steps in ecological succession include: 1. Nudation: Development of a bare site, called Nudation. 2. Invasion: Arrival of seeds and spores. 3. Competition and coaction: As the species multiply, they interact with one another. 4. Reaction: Changes in the environment brought about by the developing community. 5. Stabilization: A climax community forms. ## Step 3: Primary succession occurs in essentially lifeless areas—regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. Secondary succession is a process started by an event (e.g. forest fire, harvesting, hurricane) that reduces an already established ecosystem. ## Step 4: The water cycle involves the following steps: 1. Evaporation: The process by which water changes from a liquid to a gas or vapor. 2. Condensation: The process by which water vapor in the air is changed into liquid water. 3. Precipitation: Water released from clouds in the form of rain, freezing rain, sleet, snow, or hail. 4. Collection: Water pooling in large bodies (like oceans, seas and lakes) and it also seeps into the ground, replenishing groundwater. ## Step 5: Evaporation is the process by which water changes from a liquid to a gas or vapor. ## Step 6: Precipitation is water released from clouds in the form of rain, freezing rain, sleet, snow, or hail. Examples include rain, snow, sleet, and hail. ## Step 7: Transpiration is the process where plants absorb water through the roots and then give off water vapor through pores in their leaves. ## Step 8: Condensation is the process by which water vapor in the air is changed into liquid water. ## Step 9: The carbon cycle involves the following steps: 1. Carbon dioxide in the atmosphere is absorbed by plants and algae for photosynthesis. 2. Carbon from the plants and algae is then transferred to animals when they are eaten. 3. The carbon is returned to the atmosphere as carbon dioxide when plants and animals respire, or when plants and animals die and decompose. 4. The burning of fossil fuels also releases carbon dioxide into the atmosphere. The biggest reservoir of the carbon cycle is the deep ocean. ## Step 10: Photosynthesis is the process that allows plants to take up carbon in the form of carbon dioxide to prepare its food.

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