<span>In terms of matter and resources, the Earth is essentially a closed system, because matter and resources are fixed.
</span>In terms of energy, the Earth is an open system, because there is a balanced transfer of energy. (The energy<span> radiates into the </span>Earth's system<span>, from the Sun and</span><span> then it is radiated back into space from the </span>Earth. The<span> flows of energy are regulated by the </span>Earth's<span> atmosphere and ozone layer.)</span>
Between 50-80 years or even more than 80 sometimes
The answer is Language I just took the quiz.
Hope this helps someone in the future baiii <33
Answer:im uma say c educated guess
Explanation:
A
is ur awnser ...................................
