Explanation:
Sealed combustion heaters are much safer to operate than other types of space heaters, and operate more efficiently because they do not draw in the heated air from the room and exhaust it to the outdoors. They are also less likely to backdraft and adversely affect indoor air quality.
Less expensive (and less efficient) units use the room air for combustion. They do not have a sealed glass front to keep room air away from the fire and should not be confused with a sealed combustion heater.
<span>I found the missing choices, these are:
Cardiorespiratory endurance
Body composition
Flexibility
Muscular strength
Rosalyn's area of fitness that needs to improve is MUSCULAR STRENGTH.
Muscular strength is defined as the </span><span>amount of force a </span>muscle<span> can produce with a single maximal effort. In Rosalyn's case, she needs to develop her arm muscles to enable her to hold her cousin's baby without feeling any fatigue.</span>
The criteria of making mistakes and anyone does not give chance are:
- Carelessness,
- Lack of knowledge, that is , the ability to recall
- Inadequate reasoning ability
<h3>What is mistake?</h3>
This is an error or blunder. It is a state,quality, or condition of being wrong. A mistake is committed accidentally or not deliberately.
Learning from mistakes is a good way of learning but it should not be encouraged because a mistake made that is costly could be harmful to the individual. For instance, it is harmful if learning from a mistake of mixing acid in the laboratory, it could lead to deformity of the body.
Learn more about mistakes:
brainly.com/question/8322321
(B) The unequal heating of earth’s surface by the sun.
Answer: Maturation; learning
Explanation:
Not all children are ready to be toilet trained at the same time. Some get to that level faster than others. To begin toilet training, the child would have to have matured enough to know when they have bowel movement as well as how to stay dry. When this happens, they are ready for training.
Sometime, toddlers can learn from family members or people they are around what it means to use the toilet by watching them. This can therefore influence the time that a toddler can be toilet trained.