Answer:
a. granite, andesite, basalt
Explanation:
There are three basic different types of magma: rhyolithic, andesitic, and basaltic. These three types of magma have different properties which differs them from one another, and which cause different types of eruptions. The rhyolithic (granite) magma has very high viscosity. This magma is the thickest, managing to trap gases in it, and because of it it causes highly explosive eruptions. The andesitic magma is moderate in viscosity, and it has explosive eruptions, but also has lava flows that are relatively slow, so it is very unpredictable what kind of an eruption will the volcano have. The basaltic magma is the least viscous. This means that the eruptions of these volcanoes are not explosive, but instead they produce thin lava flows that cover the surrounding area.
Answer:
$47.76 hope this helps :)
Explanation:
Answer:
True
Explanation:
The Canadian government contracted the Canadian Pacific Railway in 1880. It was constructed over the next 5 years to connect eastern Canada with British Columbia.
They give more/additional information about a certain topic of research.
They help learns to know what they may expect to see on the field
A majority of the worlds population tends to concentrate on coastal regions primarily for access to trade or business with other countries.
