Question
Write down four main characters of Pteriodophyta. Give two examples.
Write down four main characters of Pteriodophyta. Give two examples.
Example: Club mosses–Selaginella and Ferns–Marselia.
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Fill in the blanks: A, B, and C.
What is biomagnifications? Name two heavy metals which, when magnified resulted in diseases in humans.
Name three occupational diseases caused due to air pollution. Also mention their causative factors.
What are the different tissues in alimals.
Name respiratory diseases that may occur due to air pollution.
Describe the methods of carbon replenishment of atmosphere.