Please select a subject first
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Match the following:
| 1. | More industrial cities | a. | dust particles |
| 2. | Coastal areas | b. | Humidity |
| 3. | Rainy season | c. | Carbon dioxide |
| 4. | Windy places | d. | water vapour |
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How to show the presence of carbon-di-oxide in the air?
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The composition of air changes slightly from place to place. Give examples.
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Give the components present in the air with a percentage?
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______ is responsible for making clouds.
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The air in coastal areas have more oxygen.
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When cooled to -57°C, gaseous carbon-di-oxide becomes a liquid.
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“Air is not an elementary substance, but a composition”. Why?
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Which one is the prokaryotic cell among the following?
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The habitat of Escherichia coli bacteria is ______.
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The prokaryotic cell type of nucleus is called ______.
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______ cells were the first form of life on earth.
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Give two examples of prokaryotic cells?
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The first cell formed in the earth ______.
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The smallest bone in our body is stapes.
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Analogy:
The smallest bone of our body: Stapes.
The longest bone of our body: ______.
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Analogy:
A newborn baby has bones: More than 300.
An adult has bones: ______.
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What are the bones found in the skull?
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A newborn baby has ______ bones.
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