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Sea Floor Spreading Theory

The process o...

Question

The process of pushing the oceanic crust on the sides of ridges, and the spreading of the ocean floor, is known as _________________.

A

Tides

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B

Seafloor mapping

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C

Seafloor spreading

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D

Sea waves

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Solution

The correct option is C Seafloor spreading
The process of pushing the oceanic crust on the sides of ridges, and the spreading of the ocean floor, is known as seafloor spreading. This observation led geologists and scientists to question the prevailing theories and hypotheses like Wegener’s Theory further.

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Q. The process of pushing the oceanic crust on the sides of ridges, and the spreading of the ocean floor, is known as _________________.

Q.  The process of pushing the oceanic crust on the sides of ridges, and the spreading of the ocean floor, is known as _________________.

Q. Consider the following statements about ‘Sea Floor Spreading’ :
1. According to it , constant eruptions at the crest of oceanic ridges cause the rupture of the oceanic crust and the new lava wedges into it, pushing the oceanic crust on either side.
2. The ocean floor that gets pushed due to volcanic eruptions at the crest, sinks down at the oceanic trenches and gets consumed.
Which of the above statements is/are correct :

'सी फ़्लोर स्प्रेडिंग' के बारे में निम्नलिखित कथनों पर विचार करें:
1. इसके अनुसार, महासागरीय उभारों के शिखर पर लगातार प्रस्फुटन महासागरीय पपड़ी के टूटने का कारन है और नवीन लावा इसमें प्रवेश करता है,महासागरीय पपड़ी को दोनों ओर धक्का देते हुए।
2. समुद्र तल जो शिखा पर ज्वालामुखीय विस्फोट के कारण खिसकता है, समुद्र की खाइयों में डूब जाता है और उपभुक्त हो जाता है।
उपरोक्त कथनों में से कौन सा/से सही है / हैं:

Q. Mid oceanic ridges are also known as __________.

Q. Mid oceanic ridges are also known as __________.

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