Biology
Grade-8
Easy
Question
Pick the odd one out.
Hint:
The ecosystem is the odd one out.
The correct answer is:
- Ecosystem is the combination of biotic and abiotic components of a habitat.
- Rest of the options are the cycles of nature like sulphur cycle.
- All these cycles help to maintain the ecosystem.
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Match the following
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Match the following
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When fossil fuels are burnt __________ is liberated into the atmosphere.
When fossil fuels are burnt __________ is liberated into the atmosphere.
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The element that is present in atmosphere and is required for respiration process in all living organisms is ________.
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The cycle that does not involve atmosphere for its exchange is __________.
The cycle that does not involve atmosphere for its exchange is __________.
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The process of converting Nitrite to Nitrate by Nitrobacter is called __________.
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________ element is present in amino acids like methionine and cysteine.
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_________ percentage of oxygen is present in the atmosphere.
_________ percentage of oxygen is present in the atmosphere.
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The plants take up carbon dioxide for __________ process from atmosphere.
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Crossword puzzle
Crossword puzzle
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Which type of age pyramid is given in the image?
Which type of age pyramid is given in the image?
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Observe the chart and choose the correct equation.
Observe the chart and choose the correct equation.
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Which of the following shows the variation in the population of the male and female with age?
Which of the following shows the variation in the population of the male and female with age?
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Exponential growth shows __________ curve, when resources are limited populations exhibit.
Exponential growth shows __________ curve, when resources are limited populations exhibit.
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