List five things you have doe over thae last one week toIncrease the prssure on our natural resources.

List five things you have do over the last one week to: Conserve our natural resources

Long Answer Questions Five mark QUESTIONS FROM CBSE BOARD EXAMINATIONS : (a) Asa senior biology student, you have been asked to demonstrate to the students of secondary level in your school, the procedure(s) that shall ensure cross pollination in a hermaphrodite flower. List the different steps that you would suggest and provide reasons for each one of them.

One of the two set squares in your instrument box has angles of measure 30^(@) - 60^(@) - 90^(@) Take two such identical set - squares .Place them side by side to form a kite like the one shown here . How many lines of symmetry does the shape have ? Do you think that some shapes may have more than one line of symmetry ?

These questions consist of two statement each, printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses. A. If both Assertion and Reason are true and Reason is a correct explanation of the Assertion. B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. C. If Assertion is true but Reason is false. D. If both Assertion and Reason are false. Assertion: Rate or extinction of wildlife has become rapid in the last one hundred years. Reason: Unplanned human activities like population explosion, deforestation, industrialization , hunting etc. have destroyed the natural habitats of many spp. of wildlife.

List five main groups of natural plant growth regulators. Writea note on discovery, physiological functions and agricultural/horticultural applications of any one of them.