Give a brief account of acid rain.

Give a brief account of viruses with respect to their structure and nature of genetic material. Also name four common viral diseases.

What is oogenesis? Give a brief account of oogenesis.

Give a brief account of the counter mechanism.

Proteins are the polymers of alpha - amino acids. The structure and shape of proteins can be discussed at four different levels - namely primary, secondary, tertiary and quaternary Give an account of structure and shape of proteins considering the above levels.

Give a comparative account of the classes of kingdom Fungi under the following. i. Mode of nutrition ii. Mode of reproduction

The Taj Mahal in India has been affected by 'acid rain'. Explain the causes and harmful effects of acid rain.

The order of acid in acid rain