You have been deputed by your school principal to train local villagers in the use of biogas plants. With the help of a labelled sketch explain the various parts of the biogas plant.

What are the uses of biogas plant ? Draw a well labelled diagram of typical biogas plant.

Draw a diagrammatic sketch of biogas plant and lebel its various components.

How would you find genotype of a tall pea plant bearing white flowers? Explain with the help of a cross. Name the type of cross you would use.

You have heard about serveral insectivorous plants that feed on insects. Nepenthes or the pitches plant is one such example. Which usually grows in shallow water or in marsh lands. What part of the plant os modified into a 'pitcher'? How does this modification help the plant for food even though it can photosynthesize like any other green plant?

The Class X students of a secondary school in Krishinagar have been allotted a rectangular plot of land for their gardening activity. Sapling of Gulmohar are planted on the boundary at a distance of lm from each other. There is a triangular grassy lawn in the plot as shown in the Fig. The students are to sow seeds of flowering plants on the remaining area of the plot.:- Taking A as origin find the coordinates of the vertices of triangle .What will be the coordinates of the vertices of triangle PQR if C is the origin ? Also calculate the areas of the triangles in these cases. What do you observe ?

You are asked to find the genotypes of a tall pea plant growing in your school garden. Name the cross and explain how would you confirm the genotypes.

Explain why The coolant in a chemical or a nuclear plant (i.e., the liquid used to prevent the different parts of a plant from getting too hot) should have high specific heat.

A survey was conducted by a groupofstudentsas a part of their enviromentawareness programme, in which they collected the following data regarding the number of plants in 20 houses in a locality. Find the mean number of plants per house. Which method did you use for finding the mean, and why?