Limestone contains calcium carbonate which comes from animals that have shells, it already has carbon. Other sources are ocean animals which create shells that combine both carbon and calcium. Their dead bodies also release carbon to the ocean. Limestone is also known as a sedimentary rock that has carbon. Outside the ocean, limestone emits the carbon and becomes part of the carbon cycle. In addition to this, limestones are widely used by people becomes a part of the carbon cycle. Its component is present on asphalt, animal feed.
D wheat and oats are the dominate crops in Japan
Your heart circulates your blood throughout your body everytime it beats.
No, because it still codes for valine in this case, but if another nucleotide was changed such as GCA it would code for alanine instead.
TRUE,hope this helped :))
