a)121 million gigatons or 121 million billion metric tons" of carbon).
B)The ocean, with around 38,000 gigatons
c)60 gigatons of carbon
Its False because the main source of carbohydrates is bread and rice so the answer is b.False :))
i hope this be helpful
The study of tree rings is called dendrochronology. Trees produce a single growth ring each year and by studying the size and composition of each ring scientists can get information about the age of the tree, available nutrients in the area, and general climatic conditions. A relatively small ring may indicate a year when there was very little rainfall and a larger ring indicates favourable conditions for plant growth.
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The ocean floor regions are the continental margins, the ocean basin floor, and the mid-ocean ridge.
