False. Igneous rocks are formed by the cooling and solidification of magma.
The most densely populated European nation is the Vatican, located within Rome. It has 800 citizens with them living on a 0.17 miles squared, meaning there are 4,709 citizens per mile squared. This number might seem odd since it's much greater, but as Vatican is smaller than 1 mile, it cannot be compared without it becoming so big.
Answer:
1) uranus
2) venus
3) mercury
4) mars
5) jupiter
6) it doesn't say which planet, but that's only true for earth
7) neptune
8) saturn
Explanation:
uranus axis is tilted more than 90° from the solar sistem plane, it's unknow why this is, but a collission is suspected
even though mercury is closer to the sun venus is hotter in average beacause mercury lacks an atmosphere to retain the heat
mars moons are called phobos an deimos, the only other rocky planet to have a moon is earth since pluto is no longer considered a planet
saturn's density is so low that it would theoretically float if thrown in a pool of water of the appropiate size
For number 2 I would say C because take a square for example which is a quadrilateral has all 90 degree interior angles so does a rectangle. As for number 3 I would say maybe A or B I’m a bit confused to as what the question is asking. Hope this helped a bit though and good luck!