Answer:
because it permits certain movement of molecules in and out of the cell
The air and water are polluted
Cutting down the trees! (Stop cutting them down)
And human presence disrupting the ecosystem (let the environment be)
The correct answers are:
<em>Question 1: peacefully;</em>
In the democratic societies, people can protest an every issue that they consider is worth protesting, and consider it as something that is damaging to the country or themselves. But also, the people that protest are obligated by law that they have to protest peacefully, if not there are legal consequences against those that use violence.
<em>Question 2; right;</em>
Considering the statement, the internet seems to be treated as a right. Since freedom of speech is ensured, and it is ensured for everyone, this global network enables the people to express their own opinion on every subject without being prosecuted, and that puts it into the category of a human right.
Answer: The potential energy in the system is greatest at X
Explanation: Potential energy is how much energy an object can have. Gravity has an effect on potential energy, the higher something is, the more potential energy it has. For example, if you hold a book above your head, that book has potential energy. When you drop the book, it has kinetic energy. Therefore, since point X is the highest point, the ball has the greatest potential energy there.
