True or false

1.All volcanic eruptions are explosive

2.Volcanoes change the Earths surface constantly

3.Magma forms in the mantle

4.Volcanos are randomly located across the earth surface

5.Many volcanoes exist under the oceans

6.Volcanoes are only found in our solar system

1. All volcanic eruptions are explosive

False

2. Volcanoes change the Earths surface constantly

True

3. Magma forms in the mantle

True

4. Volcanos are randomly located across the earth surface

False

5. Many volcanoes exist under the oceans

True

6. Volcanoes are only found in our solar system

False

Explanation:

1. Volancoes can also have effusive eruptions.

2. Volcanoes constantly change the Earth's surface in many ways.

3. The upper part of the mantle is where magma is formed.

4. Volcanoes are not randomly distributed over the Earth's surface.

5. There are many volcanoes under the ocean. Some rise half a mile above sea level.

6. There are volcanoes on the moons of Jupiter, Saturn, and Neptune.

answer and explanation;

volcanic rocks are igneous rocks which form from lava, molten rock which has been thrust out of a volcano onto the surface of a rocky body such as an asteroid, planet, or dwarf planet.  

plutonic rocks are igneous rocks which form from subterranean chambers of molten rock or magma. plutonic rocks make up the base of continental crust as well as oceanic crust. their slow rate of formation causes them to be coarse grained since there is plenty of time for large crystals to form before the magma solidifies into rock.

the textural difference is that plutonic rocks are more coarse grained than volcanic rocks. plutonic rocks are coarse grained while volcanic are fine grained ; glassey or fragmental. since fine and coarse are adjectives the decision as to whether a rock is fine or coarse grained is generally made on the bases of whether or not the individual crystals can be seen in most if the rock.