I would say the one least likely to cause outdoor environment contamination is going to be D, fertilizers.
Fertilizers are meant to help the environment, not damage it.
Answer:
Basal metabolic rate.
Explanation:
If you go for weeks without eating the proper amount of calories, your body may experience a drop in its resting rate of energy expenditure or basal metabolic rate.
Basal metabolic rate (RMR) also known as resting metabolic rate (BMR) can be defined as the amount of calories that is required to keep the human body to function properly and perfectly at rest.
This ultimately implies that, basal metabolism is the minimal amount of calories or energy that is required by an individual for maintaining vital functions such as blood circulation, keeping the body warm and respiration while fasting or in a complete mental and physical rest.
Some of the factors that affects the basal metabolism rate (BMR) in humans are height, weight, age, starvation or fasting, thyroxine, fever, stress, malnutrition and growth.
Additionally, calorie can be defined as a standard unit used for the measurement of the amount of energy present in a living organism.
