What pattern of material movement found in the earth system tracks how an element moves from living to nonliving parts? a) rock cycle b) calcium cycle c) carbon cycle d) none of the above

Which of the following forests would the wilderness act of 1964 most effectively protect from harmful logging? i. a forest containing several service roads ii. a forest through which a highway has been constructed iii. a forest that has never been affected by human development a. i only b. ii only c. iii only d. i and ii only e. i and iii only