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Rocks which are formed by the solidification of lava on the earth's surface are ________?

LohaHridoy
  1. Sandstone
  2. Limestone
  3. Granites
  4. Basalts

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AhmedNazir

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Answer: Option 4

Rocks which are formed by the solidification of lava on the earth's surface are Basalts. Basalt is a dark-colored, fine-grained, igneous rock composed mainly of plagioclase and pyroxene minerals. It most commonly forms as an extrusive rock, such as a lava flow, but can also form in small intrusive bodies, such as an igneous dike or a thin sill.

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The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where IG = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface, and x = Depth of centre of gravity of the immersed surface from the liquid surface)?

Answer: Option 4 Let'

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Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area ; in the casting)?

Answer: Option 4 Let'

1 Answers 1 views
The rocks which are formed due to cooling of magma at a considerable depth from earth's surface are called?

Answer: Option 1 Let'

1 Answers 1 views
The rocks which are formed due to cooling of magma at a relatively shallow depth from the earth's surface are called?

Answer: Option 2 Let'

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The rocks which are formed due to pouring of magma at the earth's surface are called?

Answer: Option 3 Let'

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Which of the following are true with respect to the Indian Peninsular Plateau I.The southern plateau block is formed mainly of granite and gneiss II.The Deccan lava plateau is an elevated tableland consisting of horizontally arranged lava sheets III. The Malwa plateau dominates the Vindhyan scarps, forming the northern flank of the plateau IV. The trough of the Narmada and Tapti are interposed between the Vindhyan and the Satpura ranges?

Answer: Option 3 The following that are true with respect to the Indian Peninsular Plateau are The southern plateau block is formed mainly of granite and gneiss, The Deccan lava...

1 Answers 1 views
Which of the following are true with regard to temperature control of the atmosphere of a given place I. The major temperature contrasts on earth's surface are between land masses and oceans II. During night, the water surface cools more rapidly than the land surface III. Temperature generally decreases with latitude on either side of the equator IV. Temperature rises to a maximum during summer and falls to a minimum during winter?

Answer: Option 1 The following are true with regard to temperature control of the atmosphere of a given place are The major temperature contrasts on earth's surface are between land...

1 Answers 2 views
Which of the following are true with respect to sedimentary rocks I. The rocks are deposited in layers II. The particles of rocks are at times wholly of organic nature III. The rocks are not crystalline IV. Their structure is determined by great pressure or heat?

Answer: Option 1 The following that are true with respect to sedimentary rocks are that the rocks are deposited in layers, the particles of rocks are at times wholly of...

1 Answers 1 views
The type of igneous rocks which are formed midway between volcanic and plutonic rocks, are known as ________?

Answer: Option 2 The type of igneous rocks which are formed midway between volcanic and plutonic rocks, are known as Hypabyssal. Hypabyssal rock, is an intrusive igneous rock that is...

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Which of the following are true with respect to the Indian Peninsular Plateau I. The southern plateau block is formed mainly of granites and gneiss II. The Deccan lava plateau is an elevated tableland consisting of horizontally arranged lava sheets III. The Malwa plateau dominates the Vindhyan scarps forming the northern flank of the plateau IV. The troughs of the Narmada and the Tapti are interposed between the Vindhyan and the Satpura ranges.?

Answer: Option 3 The following that are true with respect to the Indian Peninsular Plateau are The southern plateau block is formed mainly of granites and gneiss. The Deccan lava...

1 Answers 1 views

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