Environmental sustainability is the ability of the environment to function without going into a decline from the stresses imposed by human society on natural systems (soil, water, air) that . A)indefinitely, maintain life
B)developed, maintain
C)maintaining, developing
D)renewable, destroys

Why is it incorrect to say that mitochondria function only as energy factories with cell

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.

Are the layers of rock above and below the coal older or younger?