A closed system is a system that makes no physical or chemical exchanges with its environment. Of these systems provided as choices (tree, human, clock, car), only a clock does not make exchanges with the environment, except for energy.
Therefore, of that list, only a clock would be a closed system.
Hope that helped! =)
The answer is D. A turtle suns itself on a rock during a cool day
<span>National highway traffic safety administration doing the survey in Basis of this research, He found that the drivers who get more citations are involved more road crashes. These guys are not taking seriously to his life. Road safety is very important for these.</span>
Photosynthesis uses sunlight energy to make glucose (energy stores). A by-product of photosynthesis is oxygen. plants use water and sunlight to grow and they produce oxygen. Animals eat plants, use oxygen and breathe out carbon dioxide. Since the space station is in the shadow of the earth, the plants are unable to complete the process of photosynthesis and the carbon dioxide that is being produced by the humans cannot be utilized by the plants due to no sunlight. Therefore the carbon dioxide is going to continue to build up as the energy storage molecules are being depleted and not replenished.
Answer:
no because he wouldn't live long enough to survive because ti would take like a hundred to a thousands of year to reach there because there r about 9.7 million kilometers in a light year
Explanation:
