FORESTRY
SOIL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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types of rock
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basic classes of soils
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master horizon names
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forms of minerals
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Detailed explanation-1: -Igneous rocks are formed from melted rock deep inside the Earth. Sedimentary rocks are formed from layers of sand, silt, dead plants, and animal skeletons. Metamorphic rocks formed from other rocks that are changed by heat and pressure underground.
Detailed explanation-2: -Three Types of Rock: Igneous, Sedimentary & Metamorphic. AMNH.
Detailed explanation-3: -Rocks are made up of different minerals and form the Earth’s crust (outer layer). Different combinations of minerals form rocks; minerals are made of elements. There are 3 different types of rocks; igneous, sedimentary and metamorphic. Igneous rock is formed when magma or lava from volcanoes cools.
Detailed explanation-4: -Common metamorphic rocks include phyllite, schist, gneiss, quartzite and marble.
Detailed explanation-5: -Aphanitic: fine-grained, less than 1 mm, grains not seen with the unaided eye. Phaneritic: “coarse-grained”; visible crystals; 1 to 10 mm. Pegmatitic: “very coarse-grained”; > 1 cm. More items •27-Oct-2020