I think cities but is this about country
It's being estimated that dinosaurs lived on Earth from about 237 million years ago to about 66 million years ago. So answers B and D are definately too "old", while answer A is too "young". I'd pick answer C as it's most probable.
Answer:
So much salt will be left that is even enough to form a layer about 500 feet thick that covers all of Earth.
Answer:
<h2>Human activities contribute to climate change by causing changes in Earth's atmosphere in the amounts of greenhouse gases, aerosols (small particles), and cloudiness. ... Changing the atmospheric abundance or properties of these gases and particles can lead to a warming or cooling of the climate system.</h2>
