Which animal is responsible for creating the problem of global warming?

From which place sunrise can be seen 15 times in one day?

Which place is there outside earth where human being can reside?

The Physical environment of the Earth and the organisms found on the Earth together act as a living unit. What is this hypothesis called?

At the time of the formation of the planet like Earth, the environment was very hot and explosive. How much time would it have taken to cool down?