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Here, A is incorrect at its place. Preserving down the smartphone wonrsquo;t make sense, but powering down a smartphone makes sense. Hence, A-B can be exchanged. Also, C and D are incorrect at their places. They can also be exchanged to get a meaningful sentence. Powering down your smartphone at night wonrsquo;t help preserve the battery, since it's unlikely that you would be using the device at that time.
Match the following
Which of following group of plant nutrients is as structural elements?
Which chemical is commonly used in the tertiary treatment process for phosphorus removal?
Which of the following test is used to test the goodness of fit?
Micro propagation is an efficient alternative method of vegetative propagation since:
A. True-to-type plants are produced.
B. Multiplicati...
Global Warming Potential of Nitrous Oxide (N₂O) is ____ for 100 year timescale.
When was National Seed Corporation founded?
Which of the following ministries has launched the GOBAR Dhan scheme?
What is the toxic compound found in subabul (Leucaena leucocephala) that can negatively impact animal health?
For how many days in advance, weather forecasts are currently issued by IMD in DAMU project?