Hey there!
If there is a temperature difference between two objects, the object that has a higher temperature will want to level out its heat. Therefore, it will transfer the heat it needs to the other object if it allows until they are the same temperature.
I hope this helps!
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Answer: B
Explanation: It is the question 2 that can be answered using scientific process. scientists can better explain the effect of plastic bags on birds.
The other question can be answered by research or logics.
Trees produce 2 colored rings per year and so by counting these rings you can have an idea as to how long the tree has lived. With 20 dark-colored rings and 20 light-colored rings, the tree is likely to have stood up for 20 years. I hope this helps.
Answer:
If an atom has an outer shell that is not full, it may bond with another atom, using the electrons to complete its outer shell. These types of atoms are known as free radicals. Free radicals break cells down over time. As the body ages, it loses its ability to fight the effects of free radicals. The result is more free radicals, more oxidative stress, and more damage to cells, which leads to degenerative processes, as well as “normal” aging.
Explanation:
