Explanation:
first find the volume of room --->

then find the mass

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.
<span>The question says, what drives surface current. The correct option is A, that is wind. There are two different current system in the ocean, they are deep circulation and surface circulation. Surface current is majorly driven by the wind. The wind is capable of moving the top 400 meters of the ocean, thereby creating ocean surface current. The pattern of the surface current is determined by the direction of the wind, forces from the earth rotation and the position of the landform that interact with the current.</span>
Answer:
Acceleration is the rate of change of velocity. What is commonly said as ‘ten meter per second squared’ can bee broken down into ‘ten meter per second per second.’ This gives us the true meaning of the term acceleration.
Just like ‘ten meter per second’ means increasing the displacement by ten meters every second, ‘ten meter per second per second’ means increasing the velocity by ten meters per second every second.
So, basically if you consider the case of a free fall motion, where ‘t’ stands for time and ‘v’ stand for velocity at that instant:
At,
t=0, v=0 m/s
t=1, v=0+10 m/s;
t=2, v=0+10+10 m/s;
t=3, v=0+10+10+10 m/s;
This can also be thought as a Arithmetic Progression where common difference ‘D’ is the acceleration(a), since it adds a 10 m/s to velocity every second and the first term ‘A’ stands for the initial velocity (u). Using this approach we can derive to the first equation of motion:
v = u + at
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Explanation:
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Answer: be a better person
Explanation: