ANATOMY

GENERAL ANATOMY

EMBRYOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The Earth’s surface is divided up into several large movable tectonic plates. Which of the following is true about these plates?
A
The Earth has only continental tectonic plates.
B
The Earth has both continental and oceanic tectonic plates.
C
The Earth has only oceanic tectonic plates.
D
The Earth has neither continental nor oceanic
Explanation: 

Detailed explanation-1: -the answer is A, the earth has both continental and oceanic tectonic plates.

Detailed explanation-2: -The system of ideas behind plate tectonics theory suggests that Earth’s outer shell (lithosphere) is divided into several plates that glide over the Earth’s rocky inner layer above the soft core (mantle). The plates act like a hard and rigid shell compared to Earth’s mantle.

Detailed explanation-3: -Earth’s crust, called the lithosphere, consists of 15 to 20 moving tectonic plates. The plates can be thought of like pieces of a cracked shell that rest on the hot, molten rock of Earth’s mantle and fit snugly against one another.

Detailed explanation-4: -Expert-Verified Answer. The correct option is (c). Tectonic plates do get stuck sometimes until they slam past each other which releases pressure. The tectonic plates might get stuck due to fiction and it will lead to the creation of stress.

Detailed explanation-5: -Plate motions cause mountains to rise where plates push together, or converge, and continents to fracture and oceans to form where plates pull apart, or diverge. The continents are embedded in the plates and drift passively with them, which over millions of years results in significant changes in Earth’s geography.

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