A will be the answer because usually marking your exercise days will become a habit because lets say you would do a running exercise but you want to do it in a certain day well if you mark it on the calendar, it'll become a habit.
Answer:
Recycling
Explanation:
Precycling is the practice of reducing waste by attempting to avoid bringing items which will generate waste into home or business.
NIMBY, or Nimby, is a characterization of opposition by residents to a proposed development in their local area.
The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without this atmosphere.
By slowly introducing the changes and not implementing them all at once.
Answer:
it increases the heart rate of the individual that gets tired while exercising.
Explanation: