Q14: Our sun
Q15: The strong magnetic reaction in our atmosphere
Answer:
the correct answer to your question is 20
A local community needs to provide more electricity for its growing population. Currently, the community's electricity needs are met by coal-burning power plants several kilometres away. Citizens are concerned that burning more coal will produce too much air pollution.
Which of the following could be used as an alternative energy resource to help minimise air pollution in this community?
A. hydroelectric energy
B. solar energy
C. wind energy
<u>D. all of these
</u>
<u />
Answer: 14 :12 water molecules,
Explanation: 17: 6 molecules
When salt is ejected in the ocean as sea forms, the waters salinity increases because salt water is heavier so it’s lower
