pleas this is a major test and i can’t fail but i just have so much test anxiety i can’t
which statement describes the energy changes that occur when water in a tea kettle is heated on a stove that uses natural gas?

In an experiment examining the effects tai chi on arthritis pain, callahan (2010) selected a large sample of individuals with doctor-diagnosed arthritis. half of the participants immediately began a tai chi course and the other half (the control group) waited 8 weeks before beginning. at the end of 8 weeks, the individuals who had experienced tai chi had less arthritis pain that those who had not participated in the course.