With the help of diagram answer the question below:

The lithium forms `+1` ions while berylium forms `+2` ions?

Label the diagram and answer the questions below: Label the diagram and give a heading.

Answer the question How did coal form in nature?

Answer the question Name the hardest form of coal.

With the help of given diagram, answer the following questions: Which part acquires the information in the neuron?

With the help of given diagram, answer the following questions: Through which part does the information travel?

With the help of given diagram, answer the following questions: Name the parts labeled A and B in the neuron.

With the help of given diagram, answer the following questions: Where is the impulse converted into a chemical signal for onward transmission?

Observer the following diagram and answer the questions given below: What is homologus chromosome?

Explain with the help of a diagram how soil is formed.

Observe the diagram and answer the questions given below it. Mention the function of these tissues.