Answer:
In the element (<u>n Na20)</u> the <em>2 </em>means that there are 2 oxygen atoms in the Sodium Oxide.
Answer:
Cell membrane is considered as boundary of the cell.
Explanation:
Cell membrane is the boundary of the cell which is selectively permeable that allows the micro-nutrients, water and gases like oxygen and carbondioxide etc through the process of diffusion. When the water goes inside due to diffusion it is the indicator that there is less quantity of water present inside the cell as compared to the external environment, this phenomena is called hypertonic.
Plates slide past - transform faults
Plates collide and crumple - mountains
Creation of Hawaiian - volcanoes
One plate sinks - subduction
Plates spread apart -mid ocean ridges
I think this is right :)
Answer:
Explanation:
5. "Although there is some disagreement, several types of marine ecosystems are largely agreed on: estuaries, salt marshes, mangrove forests, coral reefs, the open ocean, and the deep-sea ocean. An estuary is a coastal zone where oceans meets rivers."
6. "the ecosystem is changing making it easier for people to live"
7. "A positive effect would be the organism getting the right amount of nutrients if the ecosystem went fast everything would happen so fast that the ecosystem won't turn out right and the fast change with case the wrong amount of nutrients from the change happening so fast."
