Acollision of the earth and another planet the size of mars is thought to have resulted a: the heliocentric model of the universe.. b: the geocentric model of the universe.. c: mars. d: the moon

A collision of the earth and another planet the size of mars is thought to have resulted in
Moon
the size of mars resulted into moon
so correct option is D 
hope it helps

Julia would be observing a. static electricity was caused by her sweater rubbing against her shirt and transferring electrons. she didn't touch anything metal, so that would cancel out b.she most likely didn't rub her sweater against her hair either, so that cancels out c.she also didn't scoot across the carpet while trying to take her sweater off, that cancels out d.so that leaves a.a. is correct.