Liquid water is not stable on Mars but was stable in the past because Mars' atmosphere was thicker, trapping carbon-dioxide easily, warming the planet, making water stable. But the atmosphere dissolved, making Mars colder, so now liquid water is not stable.
6 mongolia 7. sweden 8. zimbabwe 9. argentina
It is jamestone & niagra falls
Nonrenewable resources. I'm a bit confused on the question, so renewable resources are materials or resources that will not run out in yours or my lifetime. Renewable resources are things such as sunlight, water, oxygen, or trees. Nonrenewable resources, such as fossil fuels, oil, or coal are things that have the potential to run out, and when they do, that's the end of them. See we will always have sunlight because it's a constant source, but nonrenewable resources take millions of years to form.