An experiment starts with a question , which then turns into a hypothesis. every experiment has variables in it and each one has a title in the expiemernt which is the controlled group the experimental group which is what you are testing, you also have the dependent and independent variables. and the confounding variable
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.
Gene structure is the way a gene looks under a microscope, how would in a persons body just blown up so it is accessible to see by the human eye
Answer:
is there apposed to be options???