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The weak zones are also known as _____________ zones.

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Important Questions on Some Natural Phenomena

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Science>Physics>Some Natural Phenomena>Structure of Earth

What are internal tectonic forces of earth? Explain any two forces.

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Science>Physics>Some Natural Phenomena>Structure of Earth

Seismograph consist of a/an

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Science>Physics>Some Natural Phenomena>Structure of Earth

Explain the steps taken to recover from an Earthquake.

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Science>Physics>Some Natural Phenomena>Structure of Earth

Which instrument is used to measure the earthquake?

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Science>Physics>Some Natural Phenomena>Structure of Earth

Where are seismic or fault zones located?

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Science>Physics>Some Natural Phenomena>Structure of Earth

The layer immediately beneath the crust is

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Science>Physics>Some Natural Phenomena>Structure of Earth

What are the different preventive measures before during and after an earthquake?

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Science>Physics>Some Natural Phenomena>Structure of Earth

A major tsunami occurred in the Indian Ocean on ________________.

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Science>Physics>Some Natural Phenomena>Structure of Earth

If you find yourself indoors during an earthquake, is it usually better to:

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Science>Physics>Some Natural Phenomena>Structure of Earth

The weak zones around the boundaries of plates underneath the Earth, which are prone to slide and cause earthquakes are commonly known as:

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Science>Physics>Some Natural Phenomena>Structure of Earth

In the given figure, layers of Earth are shown. Identify $A, B, C$ and $D$ respectively, and choose the correct option.

Question Image

	$A$	$B$	$C$	$D$
$(A)$	Outer core	Mantle	Crust	Inner core
$(B)$	Inner core	Outer core	Mantle	Crust
$(C)$	Mantle	Crust	Inner core	Outer core
$(D)$	Crust	Mantle	Inner core	Outer core

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Science>Physics>Some Natural Phenomena>Structure of Earth

Which of the following statements is incorrect?

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Science>Physics>Some Natural Phenomena>Structure of Earth

Read the passage and answer the questions.
Many earthquakes in the Indian subcontinent have been caused tremendous damage to property and loss of life. Experts say that the construction of earthquake-resistant buildings could help save many lives. In fact, cheap and locally available materials can be used along with other construction materials to construct earthquake-resistant buildings. In some buildings, heavy concrete roofs are replaced with lightweight roofs made of bamboo or rice husk particle boards. Lightweight materials, such as compressed straw bales sandwiched between plasters are used as walls as they will be less likely to fall when the ground shakes. Walls are made stronger by reinforcing them with steel, plastic, or bamboo meshes. Larger windows can be replaced with smaller ones as they create fewer weaker spots in the wall.
Buildings on solid rock are less likely to be affected by an earthquake than buildings on softer soils or soils that have water in them. If you lived in an earthquake-prone city, which area would you prefer to live in?

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Science>Physics>Some Natural Phenomena>Structure of Earth

Define mantle of the earth.

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Science>Physics>Some Natural Phenomena>Structure of Earth

Which of these is not a part of the structure of earth?

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Science>Physics>Some Natural Phenomena>Structure of Earth

Earthquakes at two places