Answer:
We get non-renewable energy from sources that will run out or will not be replenished in our life times or in many, lifetimes.
Most non-renewable energy sources are fossil fuels like : coal, petroleum, and natural gas. Carbon is the main element in fossil fuels. For this reason, the time period that fossil fuels formed (about 360-300 million years ago) is called the Carboniferous Period.
Explanation:
Fossil fuels ,coal, oil, and natural gas, do substantially more harm than renewable energy sources by most measures, including air and water pollution, damage to public health, wildlife and habitat loss, water use, land use, and global warming emissions.
We don't really like using renewable like solar , wind , water etc I think it's due to the fact that they make life easier, and i think to process renewable energy takes time and money but it causes less harm so , see countries like China, Russia, and Japan . They are mainstays on all three lists. It's also worth noting the countries that are highly dependent on nonrenewable energy sources even though they do not consume as much.
But there is a new development as countries have started leading the way in using renewable energy .Countries like
Iceland. Iceland generates the most clean electricity per person on earth, with almost 100% of its energy coming from renewable sources that make the most of its unique landscape. ...
Sweden.
Costa Rica.
Nicaragua.
United Kingdom.
Germany.
Uruguay.
Denmark.
and surprisingly China
They may be the world’s largest polluter, but China is also the world’s biggest investor in renewable energy, with huge investment levels both at home and overseas. China now owns: five of the world’s six largest solar-module manufacturing firms; the largest wind-turbine manufacturer; the world’s largest lithium ion manufacturer; and the world’s largest electricity utility.
Morocco
Morocco is a country with an abundance of sunshine (up to 350 days a year), so it has wisely decided to invest heavily in solar powered energy production. The first phase of the world’s biggest concentrated solar plant recently opened in Morocco and in combination with their wind and hydro production facilities, is predicted to produce enough energy for more than one million years
USA
The United States of America has one of the world’s largest installed solar PV capacities and an installed wind energy capacity second only to China. But it is also one of the world’s biggest energy consumers, which tends to cancel out much of its renewable capacity. Nevertheless, if more attention was paid to renewables over fossil fuels, it has been estimated that the U.S. could reduce its emissions by almost 80% in only 15 years, without impacting on consumer electricity costs.
Kenya
In the past, Kenya has been forced to import electricity from neighbouring countries, but they are working hard to reverse this by investing heavily in geothermal energy production, which accounted for more than half their energy mix in 2015. They also have Africa’s largest wind farm, providing another 20% of their installed electricity generating capacity.
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, the gravitational force is 
and the mass of the Earth is 
, therefore we can rearrange the previous equation to find m2, the mass of the telescope: