Answer:
(Correct option is 2) crystallization of molten material inside Earth.
Explanation:
There are three types of rocks found on the surface of the earth sedimentary, metamorphic, and igneous. Rocks which have hardened with the help of magma, and the hot liquid below the earth crust is known as igneous rocks.
Igneous rock is defined as a rock which is synthesized by the crystallization, and hardening of molten material which originates from the inside of the Earth. It is basically two types:
1) Extrusive rocks.
2) Intrusive rocks.
The diagram best represents the steps in the formation of the sun is the clouds of gases condense > The clouds rotate at high speed > The clouds flatten into an elliptical disc > The planets are born. The correct option is D.
<h3>What are planets?</h3>
Planets are the large spherical shaped objects that rotate about the Sun in the elliptical orbits.
Planets are shaped from Planetary cloud. The dust storm and gases gathers under its own weight. The dense matter beginnings pivoting at high paces and accumulates more mass. The center structures, the star and rest of it ultimately levels into a curved plate from which planet is formed.
Thus, the correct sequence is D.
Learn more about planets.
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Answer:
A centripetal force is a net force that acts on an object to keep it moving along a circular path
Answer:
Explanation:
Frequency is mathematically defined as the quotient of speed divided by wavelength.
where
v-is the speed of light
-w is wavelength.
Given the speed of the wave as 
and the wavelength 
, we substitute these values in the Frequency function to solve for frequency:
Hence, the wave's frequency is 
Rock is completely immersed in hot water. By the second law of thermodynamics, thermal energy or heat is transferred from substance with higher temperature to substance with lower temperature until they come to thermal equilibrium i.e. both at same temperature.
It is given here that rock is at 20°C which is at lower temperature than water at 80°C. ∴Heat or thermal energy flows from water to rock. So, right choice is-
A. The water gives the rock thermal energy and gets no thermal energy in return.
