Healthy study habits are best described as
physical and emotional strategies that a student learn more effectively.
the way a student spends most of the time focusing totally on schoolwork.
prioritizing a student’s comfort and convenience above everything else.
a student’s ability to think clearly and focus on assignments more effectively.

physical and emotional strategies that help a student learn more effectively.

Explanation:

Explanation:

Healthy study habits are aimed to increase student's efficiency, by setting and distributing specific schedules, that allow them to study enough and have time to rest or do recreational activities which is also important, because the major importance here is to stay focus during studying hours, it's not more hours, it's about a better quality of them.

So, to achieve the effectiveness, students most set physical and emotional goals too, like dedicating specific hours to study, then to exercise and recreate in other activities that they like, this way the study will be less tough and more enjoyable.

There are several things students can do to develop study habits as:

Therefore, the right answer is the first one.

to prevent people from getting the ebola virus, countries around the world paid to doctors develop a new vaccine. now that the vaccine has been made, doctors will need to experiment on a large number of people to find out if it works safely.

what is the greatest limitation that scientists are dealing with as they try to figure out how to experiment with the ebola vaccine?

meditation is a practice of sitting still and quiet for minutes or even hours. it has been practiced for thousands of years and is even a part of religious practices for some people. carefully controlled, repeated measurements of brain activity have shown that meditation does increase certain chemicals in the brain and even grows the part of the brain that people connect with their current surroundings and activities.

are claims about the effects of meditation most likely scientific or pseudoscientific?

not pseudoscientific, because people have made claims about it but scientific observations have not been made