1.) The name of my organism is the Tyrannosaurus Rex.
2.) The T-Rex went extinct 65 million years ago when the meteor hit the earth.
3.) We couldn't have done anything about this.
4.) The T-Rex lived mainly in North America and Aisa, in forests with plant-eating dinosaurs.
5.) The T-Rex was tall and stood on 2 legs. the other legs were usually up off the ground for eating its prey. I had really sharp teeth for eating meat.
There are two things that cause ocean water to become denser, and those are b) the salinity of water and low temperatures.
The more salt there is, the denser the water will be - take the lake Dead Sea in Israel, Jordan, and Palestine for example.
And the lower the temperature, again, the denser the water will be - the deeper you go into an ocean, it will be more difficult to move around due to density and other things.
The answer to number 2 would be as the number of carbon carbon 2ble 2ble bonds increase, the melting point decreases