Is Manhattan Island the largest island

Not hardly.

-- The area of Manhattan Island is 22.82 square miles.

-- Almost right next door to Manhattan Island lies Long Island, also in New York State.  A big part of Long Island is the Brooklyn and Queens boroughs of New York City.  The area of Long Island is 1,401 square miles.  That's 61 times the size of Manhattan Island.

-- 18 states in the US have islands bigger than Manhattan Island.

-- 2 states in the US have islands bigger than Long Island.

-- Hawaii is an Island.  It's 2.9 times the size of Long Island.

-- There are 9 islands in the US that are bigger than Long Island.  Hawaii is one of them.  The other 8 are in Alaska.

-- The 100 largest islands in the world are all bigger than Long Island.  A few of them are:  Greenland,  Australia,  Antarctica,  Madagascar,  Honshu Island Japan,  Hokkaido Island Japan,  Kyushu Island Japan,  Great Britain,  Ireland,  New Zealand North Island,  New Zealand South Island,  Cuba,  Iceland,  Sri Lanka,  Tasmania,  Taiwan,  Sicily,  Sardinia,  Jamaica,  Cyprus,  Puerto Rico,  Corsica,  Crete.    

-- Antarctica itself is an island.  It also has smaller islands around its coast. ONE little island off the coast of Antarctica, called Alexander Island, is about 12 times the size of Long Island.

the answer is "c" im pretty sure.

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.