Earthquakes only occur at transfer boundaries where two tectonic plates will slide or rub past each other.
If there are no boundaries in mid-America, then earthquakes are not possible.
It would be C chemical change
i would say it means how would organisms would react in an ecosystem. think of everyday life in your backyard perhaps. the grass uses the energy from the sun to grow. another organism, lets say a horse, eats the grass as a main source of food. lets say another grass eater lives there too-like a cow. the cow and the horse would naturally compete as they both rely on the same food source, and the same living space that is close to that food source, and so on as you move up in the food chain.
Though this is a joke, it's based on the scientific experiment Martin was about to conduct before he passed away- the hypotheses is that if you dump enough iron fillings into the ocean, it will spur the growth of the P<span>hytoplankton (of which would take in the CO2) and could possibly lead to a global cooling.</span>
Chemical energy , as starch .
