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Folds are geologic structures that are formed when rocks bend but do not break.

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What is the difference between clastic and chemical rocks?

Clastic: These rocks are composed predominantly of broken pieces of older weathered and eroded rocks Non-clastic/ Organic: A sedimentary rock composed of the remains of plants and animals.


If you found a rock with seashells in it would it be a sedimentary rock an igneous rock or a metamorphic rock?

It is definitely a sedimentary rock because you cannot find sea shells where metamorphic rocks are formed, nor can you find them in magma and lava. This is because metamorphic rocks are formed below the earths surface where the plates of the earth squash an existing rock even small to make it metamorphic, and igneous rocks are obviously formed in volcanoes where the heat and pressure would melt the fossil.


How do animals use rocks as tools?

Birds have gizzards that rely on small pebbles to help grind the food they ingest. The human animals' use of rocks is breathtaking in scope. Sea otters use rocks to break shells of sea creatures before eating them.


What rock is copper found in?

Copper is actually an element, although it is present in rocks as a mineral. Physically, it's a metal mostly used for the conduction of electricity. As for other rocks, granite and basalt are igneous rocks, as in they were formed straight from a flow of lava. They will be generally of one colour and are not easy to break. Sedimentary rocks include limestone, sandstone, and other softer rocks. They are basically layers of mud that have hardened and compressed into rock over millions of years. You can find lots of fossils in sedimentary rocks. Beds of sedimentary rock will look like many layers sandwiched on top of each other and should be fairly brittle and easy to break. Metamorphic rock is sedimentary rock that has fused and reformed into "igneous" or solid rock because of heat, pressure and time. The sedimentary rock was heated under the surface of the earth, re-fused into a solid mass, and then cooled. Some rocks will have different coloured bands around them, this is a good indication of metamorphic process.


How can animals cause mechanical weathering?

roots and diggingPlant roots break up rocks as they grow in search of water and nutrients. Animals that burrow in the ground expose rocks to the air where they can be further weathered.When animals die they produce acids which reacts with rocks causing them to break down or decay.

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