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In the months of April and May one can s...

In the months of April and May one can see a yellow sulphur like dust floating in the Himalayan pine forests. What is it due to ?

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### Step-by-Step Solution: 1. **Identify the Location and Time**: The phenomenon occurs in the Himalayan pine forests during the months of April and May. 2. **Understand the Context**: In these months, the pine trees (specifically the genus Pinus) are undergoing a significant biological process. 3. **Recognize the Biological Process**: The process taking place is pollination, which occurs around March, April, and May for these pine trees. ...
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ICSE-PLANT KINGDOM -Test Your Progress (Very Short Answer Type Questions )
  1. Arrange the following cells in the archegonium of bryophytes from bas...

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  2. Name the plant which shows circinate vernation of leaves.

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  3. In the months of April and May one can see a yellow sulphur like dust...

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  4. From which part of the female cone the wing on the seed of Pinus is fo...

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  5. Name a group of algae which contain plenty of fucoxanthin.

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  6. Name a mineral element that is essential to man and can be obtained fr...

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  7. Mention any one character in which algae differ from bryophytes.

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  8. Name the early filamentous structure produced by spore, chiefly in mo...

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  9. Name the ring of hygroscopic tooth-like structures encircling the mou...

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  10. Which generation-gametophytic or sporophytic is well developed in bry...

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  11. Name the genus which is commonly called maiden hair fern.

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  12. If the somatic chromosome number of a gymnospermous plant is 2n = 30,...

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  13. Which of the following characters are most important taxonomically to...

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  14. Mention two common characters shared by all gymnosperms.

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  15. Give the scientific names of the following: an alga with ribbon-shap...

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  16. Give the scientific names of the following: structure formed by the ...

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  17. Give the scientific names of the following: megasporangium of seed p...

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  18. Name a plant that forms seeds but no fruits.

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  19. Observe the relationship between the first two words and then fill in ...

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  20. Observe the relationship between the first two words and then fill in ...

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