A person can find their place in society by simply doing what they are good at and talented with... you can show it off and be recognized in society
7th grade would be middle school
Have* this is because has* is past tense and have is more appropriate since there are multiple things you are referring too (Mercury, Venus, Earth and Mars). To be honest, these planets have a molten core.
The answer is d spring because he wanted to do it in the spring time