Answer:
A. is the answer
Explanation:
The hammer in the first position is raised and ready to hit the nail on the head. This is called potential energy. It has a lot of energy stored inside of it but it won't get used until we allow it to hit the nail. That is why it is not kinetic energy but only potential. Think of it just as when we say something has the potential to do something.
Answer:
GMOs refers to organisms that have had changes in their DNA using genetic engineering and the threat is to make ssure they are safe for people because if this genetic modifications.
Explanation:
GMO food is food produce from organisms that have been genetically modified and people is concerned about the dangers of eating this food. However, scientific data have said that it doesn't generate a risk to human health but every GMO food needs to be examine.
Answer:
Clovis people seemed to have preferred to eat Pleistocene megafauna such as mammoths, while Folsom people seem to have preferred an extinct species of giant bison
By observing how seismic waves are absorbed and refracted, scientist have been able to work out where the properties of the earth change dramatically. our understanding of the internal structures of the earth and the size of its core is based on these observations.
basically:
size of core
structure of the earth I.e. the layers of the earth
and I think the last one is how the internal structure is changing? not sure on the last one but its still a solid guess.
