Question

rocks are important for all living things on the surface of earth justify the statement by elaborating various uses of rocks for the life of the earth​

Answer 1

Explanation:

Rock is the hard material that most of the earth’s crust is made up of. Mountains, coastlines, valleys and plains are made up of different kinds of rock. In some places soillies over rock formations. They are often eroded and made smaller during the course ofthe earth’s history. Sometimes broken parts of rock lie on top of the earth’s surface. Tinybits of them make up sand or soil. 

Most rocks contain crystals of two or more different minerals. Granite for example contains grains of quartz and feldspar.

People use rocks for many different things. They play an important role in the constructionindustry. Concrete, for example, is made up of stones, sand and gravel and mixed with cement. Rocks are also used to make medicine, weapons and cosmetics. Various types of rock have been used to make historic monuments, like the ancient Egyptian pyramids.

Rock that contains metals is called ore.  Iron, copper, lead, gold, and uranium are among the most important ores. Aluminum is produced out of a rock called bauxite. Other rocks contain valuable minerals, like diamonds or other gems.

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Answer 2

Answer:

The majority of the earth's crust is composed of the hard substance known as rock. For activities like construction, cosmetics, transportation, infrastructure, and appliances, we use rocks and minerals:

• The primary material for soils is rocks. The growth of all kinds of plants is supported by soil, which is a complex mixture of minerals and organic stuff.
• The majority of soil is made up of minerals that come from the weathering of rocks.
• Numerous minerals can be found in rocks. An ore of a mineral is a rock that contains a significant amount of that mineral. Organic materials like coal, natural gas, and petroleum are particularly abundant in sedimentary rocks.Natural gas, petroleum, and coal are significant energy and power sources.
• In igneous or metamorphic rocks, metallic minerals like iron, copper, bauxite, lead, zinc, and gold can be found.
• Igneous and metamorphic rocks can also provide precious stones like diamond, ruby, and emerald.
• The production of chemical fertilisers makes extensive use of potash, nitrates, phosphates, etc.
• Glass and pottery are made from silica and clay.
• Bauxite is utilised in the production of aluminium, whereas iron ore, coal, manganese, and other materials are used in the steel industry.
• Numerous rocks are employed in the construction of buildings, roads, and dams.
• Building stones like marble and granite are in high demand and are regarded as extremely precious. They provide the houses and buildings a beautiful polish and are long-lasting.

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