Under the ocean is wet and in continents its dry
Early 1800's. The Erie Canal was built in 1817
The correct answer is - 2. Earth's climates have changed and are likely to change in the future.
From what is known for the geologic past of the Earth, our planet's climate has been changing numerous times. The climate on the planet has varied from being predominantly wet tropical climate, to having ice ages, having multiple different climate types at the same time... The reasons for the changes in the Earth's climate are numerous, with the Sun's radiation, tectonic movements and activities, volcanic activity, outside influences like asteroid and meteorite collisions, the vegetation, and all of them have managed to create a very colorful climate history of the planet. This trend of climate change should continue in the future as well, as all of the aforementioned factors are still influencing the climate and on top of that the humans have become a factor in the climate change too.
First is to ensure that every law related to environmental
preservation must be followed aside from keeping the responsibilities duly
delegated to have a sustainable impact on the environment.
Second is to ensure that your employees know the different
consequences of their occupation pursuits which can then lessen their carbon
footprint.
Third is to take the initiative to walk instead of drive.
Walking to and from destinations may help decrease the carbon footprint that
you make.
I am not certain but I think it is numbers