Which of the following is cycled through the environment through processes such as photosynthesis, respiration, and decay

a) carbon dioxide
b)oxygen
c)both of these choices are correct
d)neither of these choices is correct

coal is not sustainable because it will one day run out.

the correct answer is: d. the saltine and pretzel are made of flour, yeast, and baking soda, and salt. the pecan contains no flour but it does contain fats. the pecan is a nut that can be consumed as a healthy snack. first of all, pecans are a source of fat (monounsaturated fat), but they provide less fat than some other nuts. pecans are a rich source of dietary fiber, manganese magnesium, phosphorus, thiamin, vitamin e…