B. Energy transfer would occur between the copper bars and the surroundings.
Explanation:
In an open system, energy transfer would occur between the copper bars and the surroundings.
There are three types of systems:
- Isolated system in which matter and energy is not exchange with the surrounding.
- Closed system there is no exchange of matter but energy is exchanged with the surrounding.
- Open system: there is exchange of both matter and energy.
If the copper bars were placed in an open system matter and energy will be exchanged with the surrounding.
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Answer:
The correct option is:
Plant uses light energy to produce food molecule during photosynthesis and obtain cellular energy from the bond of these molecule during respiration .
Explanation:
Important points :
Photosynthesis : It is a process in which green <u>plants prepare their food </u>usin<u>g</u> sunlight from CO2 and water .
Here, Food is produced
Respiration : It is a process by which organism obtain energy by breaking the food molecules.
Food molecules are source of energy which contain a large number of bonds. When these bonds break down during respiration , then energy is released .
= food molecule prepared by plants during photosynthesis . It contain many bonds
Hence The bond breaking release energy.