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Fill in the blank with the appropriate word Population problem is the........... of the day.
উত্তর
burning question
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NASA currently has plans to have a man on Mars sometime in the 2030s, while ESA plans to do so also around the same time. Here, "2030s" is referred to as
উত্তর
second quarter of 21st century
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The reason clean energy is hard to come by is that we've spent the past 150 years depending on oil, and it's quite difficult to make the switch. Here "difficult to make the switch" is related to
উত্তর
Replacing analogue oil with digital fluid