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प्रश्न
Give reasons.
Soil is turned over during tilling.
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उत्तर
Soil is turned over during tilling to bring the nutrient-rich lower layers of soil to the surface and to loosen the soil so that air and water can easily reach the roots of plants.
संबंधित प्रश्न
“Solving the problem of pollution is an effective way of environmental management” Justify the statement.
Which fuels are obtained from biomass?
Name the following method of solid waste management.
Vinegar means 4% ___________.
Lactic acid : To impart acidity : : Beta carotene : _____________________
Give scientific reason.
Microorganisms are used to control the effects of sea oil spills.
Which fuels do we get from microbes?
What products do you get from microorganisms through the fermentation process? Explain with an example.
What is retting?
Complete the given paragraph by filling the blank spaces from the options given in the bracket:
[oxygen, pyridines, mechanical, CO2, petroleum, fatal, polyester, norcadia]
Spilling of ______ oil occurs in ocean due to various reasons. This oil may prove ______ and toxic to aquatic organisms. It is not easy to remove the oil layer from surface of water by ______ method. However, bacteria like pseudomonas spp. and Alcanovorax borkumensis have to ability to destroy the ______ and other chemicals. Hence, these bacteria are used to clear the oil spills. These are called as hydrocarbonoclastic bacteria (HCB). HCB decompose the hydrocarbons and bring about the reaction of carbon with ______. ______ and water is formed in this process.
