I think you are talking about granitic intrusions.
This is not a true/false question as granite takes many other forms than intrusions.
true
true or false? the crust is the earths only solid layer or part
False
False Granite is an igneous rock
True or false: the crust includes BOTH dry land and the bottoms of the oceans?
true
true or false? the crust is the earths only solid layer or part
False
False Granite is an igneous rock
Actually they don't they fall on towards Earths crust.
It is false. Granite is a igneous rock that was formed from magma cooling and hardening.
True or false: the crust includes BOTH dry land and the bottoms of the oceans?
Basalt does have a greater specific gravity. Granite is not as dense as basalt.
false
false
False. Granite is an intrusive igneous rock and so commonly cools slowly so has time to develop moderate to large crystals.
It could be the VERTICAL crack of the crust.