Carbon-11 is used in medical imaging. The half-life of this radioisotope is 20. 4 min. What.

Of the 168 hours in a week as a full time student you should spend how many hours per week on school work?

These three organisms are interdependent on each other for their survival. what will happen if foxes are eliminated from the region? a. there will be more rabbits and less grass in the region. b. there will be more grass and fewer rabbits in the region. c. there will be fewer rabbits and less grass in the region. d. there will be more rabbits and more grass in the region.

"what factors influence the absorption of sunlight at earth's surface? "