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Explain the need for a reference atom for atomic mass. Give some information about two reference atoms.

asked Apr 11, 2022 in Chapter 4 Measurement of Matter by Doubtly (98.9k points)

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Which programming language does PHP resemble?

asked Apr 9, 2022 in PHP by Doubtly (98.9k points)

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Fill in the blanks and explain.

asked Apr 14, 2022 in Chapter 12 Study of Sound by Doubtly (98.9k points)

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Complete the sentences by filling in the blanks and explain those statements.

asked Apr 13, 2022 in Chapter 6 Classification of Plants by Doubtly (98.9k points)

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Explain your opinion about the DNA fingerprinting.

asked Apr 14, 2022 in Chapter 16 Heredity and Variation by Doubtly (98.9k points)

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_______is a service of memory management of operating system.

asked Apr 15, 2022 in Operating System by Doubtly (98.9k points)

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Foam accumulates on the surface of ‘dal’ kept for long time in summer.

asked Apr 14, 2022 in Chapter 8 Useful and Harmful Microbes by Doubtly (98.9k points)

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Which of the following is not an allotrope of carbon ? a. buckyball b. diamond c. graphite d. emerald

asked Apr 13, 2022 in Chapter 9: Elements of Group 13, 14 and 15 by Doubtly (98.9k points)

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write notes on Transpiration

asked Apr 14, 2022 in Chapter 15 Life Processes in Living Organisms by Doubtly (98.9k points)

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Dilute H2SO4 was taken in an electrolytic cell and electric current was passed through it.

asked Apr 13, 2022 in Chapter 5 Acids, Bases and Salts by Doubtly (98.9k points)

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What is meant by water of crystallization? Give examples of salts with water of crystallization, and their uses.

asked Apr 14, 2022 in Chapter 14 Substances in Common Use by Doubtly (98.9k points)

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The hard water of a well becomes soft on adding washing soda to it.

asked Apr 14, 2022 in Chapter 14 Substances in Common Use by Doubtly (98.9k points)

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The following table shows current in Amperes and potential difference in Volts. V (Volts) I (Amp)

asked Apr 11, 2022 in Chapter 3 Current Electricity by Doubtly (98.9k points)

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explain the differences Degradable and non-degradable waste

asked Apr 14, 2022 in Chapter 9 Environmental Management by Doubtly (98.9k points)

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Complete the statement using the proper option from those given below. (Mycotoxins, budding, Rhizobium)

asked Apr 14, 2022 in Chapter 8 Useful and Harmful Microbes by Doubtly (98.9k points)

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Why it is necessary to safely store pathogens of disease against which vaccines are to be protected?

asked Apr 14, 2022 in Chapter 8 Useful and Harmful Microbes by Doubtly (98.9k points)

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Which vaccines are given to infants? Why?

asked Apr 14, 2022 in Chapter 8 Useful and Harmful Microbes by Doubtly (98.9k points)

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What would you do to help maintain the equilibrium in the various bio-geo-chemical cycles? Explain in brief.

asked Apr 14, 2022 in Chapter 7 Energy Flow in an Ecosystem by Doubtly (98.9k points)

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Where there is a will, there is a way Expansion of idea

asked Apr 9, 2022 in Expansion of Idea by Doubtly (98.9k points)

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50ml water is added to 50ml solution of copper sulphate. Write down the changes that will be seen in each

asked Apr 13, 2022 in Chapter 5 Acids, Bases and Salts by Doubtly (98.9k points)

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