A leaks during mining can cause spills that pollute the ocean
The correct answer is C. <span>The keystone species is critical to maintaining the stability of an ecosystem, and changes in its population indicate changes in ecosystem health. </span>
Answer:
Evolution, mutation, and adaptation
Explanation:
Since different organisms adapt to different environments and receive different mutations, they adapt differently and slowly change. That is why there are different species of birds, just look at the galapagos islands, there are thousands of species of finches that changed to survive on each island. The same could be said for every organism since the early organisms that we evolved from were widespread, some evolved differently than others, leading to different fish, different lizards, different early mammals, and so on. That is why humans look different than dogs or cats, we evolved best to our environment so we could survive.
Answer:
* Obesity
* not enough exercise
* smoking
* old age
* diabetes
Explanation: these are some of the obvious ones the more complicated symptoms you would have to contact a doctor for. Hope this was somewhat helpful.
The size of the nucleus of an atom is about 10 raise to power 15 meter, which basically proposes that it is about 10 raise to power -5 or 1/100,000 we can say of the size of the entire atom. A good comparison of the nucleus to the atom is just like a pea in the midst of a track. The volume of the atom is 2 x 1013 times larger than its nucleus.
