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 trees chuckled in the wind.
The rain danced away.
I trembled like a feather
Because I thought I would float away.
(Came up with this in 1 minute )
Small Business
Explanation:
There's a lot of debate on why we should and shouldn't raise the minimum wage. Off the top of my head, I would say the reason not to raise the minimum wage is that it could affect small business owners. Basically, smaller businesses will be forced to pay their employees more money. Obviously that will hurt the owner financially and could ultimately lead the business to bankruptcy.