This is the called The Troposphere.
<em>Hope this helped! :)</em>
Answer:a product consisting of a natural raw material; an unmanufactured product. Many primary products are exported for processing to the developed nations.
Explanation:
Answer is labyrinthodont
About 110 million years ago, labyrinthodonts ( maze-toothed), a group of extinct amphibians. They were evolved from lobed-finned fish in the Devonian period. They were dominant animals in the rift valley was present at that time between Antarctica and Australia.
Bioprospecting is the search for plant and animal species from which medicinal drugs and other commercially valuable compounds can be obtained.
Based on this I think it could be B.
Hope this helps.
1.Net Energy Gain is a concept used in energy economics that refers to the difference between the energy expended to harvest an energy source and the amount of energy gained from that harvest.
