What do u mean by studies?

the activity or process of learning about something by reading, memorizing facts, attending school, etc. Becoming a doctor requires years of study. You can improve your knowledge of the natural world by study and observation.

answer .it is one part of learning

Explanation:

it is verb that we use it for singular person

daylight saving time (dst) has been used for more than 100 years. changing the clocks does not create extra daylight, but it causes the sun to rise and set at a one of the aims of dst is to make sure that people's active hours coincide with a german analysis of 44 studies on energy use and dst found a positive