Explain this figures.

Explain how this figure is a trapezium. Which of its two sides are parallel? (Fig 3.32)

A man who had a plot in the shape of a parallelogram divided it into three equal parts and gave one-thrid part ot his son which again was in the shape of a parallelogram. The son seeing that there was no school in the village ecides to open a school there. Answer the following questions: Show how could this decision of the man be implemented. What part did the son get? Explain with figure.

Explain : Duff

Explain the Poisons .

Explain ETS.

Explain ECG.

Explain ligands

State and explain the rules for finding the significant figures in the sum, difference, product and quotient of two numbers.

Refer to the figures given below and answer the question that follows : Recognise and explain the process by which Tasmanlan wolf evolved.