Terristial is planet made out of rock.
"Terrestrial" refers to anything related to or occurring on Earth's surface, as opposed to in water or in the air. It can also refer to living organisms that inhabit land rather than water or air.
No it is a Gas Giant.
Water pollution effects the ecosystem in many ways. One way is that it kills many aquatic plants animals and plants, it has almost made some species endangered. Another way is that this polluted water is drank by many terristial animals and this many land animals also die. It also affects the balance of the ecosystem. Sometimes the pollution causes the wrong things to grow more than normal and upsets the natural balance. For instance, phosphates can be used to help boost cleaning. But they can make their way into the ocean. Certain algae grow even faster from the phosphates. Then the algae kills or competes with other organisms, and these may be organisms that coral reefs or fish need to survive.
advantagesused for long distance communicationhigh speed data transmissionmany reciver stations can receive signal from the same sender stationdisadvantagesvery costly