OBJECTIVE FORESTRY

FORESTRY

SOIL SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
There are two types of igneous rocks (intrusive and extrusive), assess the two types of igneous rocks.
A
Intrusive rocks are those rocks that reaches the earth surface, while extrusive rocks are those rocks found below the earth surface.
B
Intrusive rocks are those rocks that found above the horizons, while extrusive rocks are those rocks found below the soil horizons.
C
Extrusive rocks are those rocks that reach the earth surface, while intrusive rocks are those rocks found below the earth surface.
D
Extrusive rocks are those rocks that found above the horizons, while intrusive rocks are those rocks found below the soil horizons.
Explanation: 

Detailed explanation-1: -Igneous rocks are divided into two groups, intrusive or extrusive, depending upon where the molten rock solidifies.

Detailed explanation-2: -Extrusive igneous rocks erupt onto the surface, where they cool quickly to form small crystals. Some cool so quickly that they form an amorphous glass. These rocks include: andesite, basalt, dacite, obsidian, pumice, rhyolite, scoria, and tuff.

Detailed explanation-3: -Intrusive (plutonic) rocks. Extrusive (volcanic) rocks. 25-Oct-2022

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