The correct answer is - It is the part of the ocean where new crusts are formed.
The place marked with A on the map is the place in the ocean where the new crust is formed. That is a place where there's a divergent plate boundary, or rather a place where the tectonic plates are moving away from one another. The gap and cracks left between them are easy target for the magma from the mantle to penetrate towards the surface. As the magma reaches the ocean floor it starts to cool off very quickly, creating new crust, and slowly making a very large underwater mountain range known as mid-ocean ridge.
Hello, some examples are Earth science, chemistry and Navigation science (don't know if there is called in this way).
In Earth Science we can talk about Geomagnetism.
In Chemistry, electrostatics and electrochemistry.
In Navigation science the compass.
Hope it helped.
Answer: Theory (D.)
Explanation:
A theory is based on years of careful scientific study, observation, and experimentation.
On the other hand, a law describes a phenomena without explaining it. An observation is merely a documentation of a phenomena and may or may not be explained. An experiment is a procedure done to test the effect of a specific variable, but does not necessarily explain WHY something occurs.
Answer:
A balloon is floating up into the air at 1 m/s.
Explanation:
Velocity is the displacement divided by the time;
Velocity = 
It is a vector quantity that has magnitude and direction.
The choice that shows a change in direction is a correct specification of velocity.
A balloon floating up into the air at 1m/s shows no directional change.
