Answer: the four terrestrial planets must once have been hot enough to be molten (like a liquid)
Explanation: Terrestrial planets can be defined as any planet of the solar system or any exoplanet which is "Earth-like" in the sense that it is composed primarily of metals and rock, in contrast to a planet which is a gas giant.
Within the Solar System, the terrestrial planets are the inner planets closest to the Sun, i.e. Mercury, Venus, Earth, and Mars.
Scientist believing that the densest, heaviest materials are at the center and not evenly distributed can be due to the fact that they must once have been hot enough to be molten. In this case, density will take place, making the heavier under and the lighter on top.
Answer:
B.
Explanation:
The roads the Romans built allowed easy access to distant lands in their empire. Which allowed for easier trade via faster land routes and protection from bandits. It also allowed the Romans to influence the exterior parts of their empire and quickly move their armies
Ellis's concept of “irrational belief” (<span>Maladaptive thinking)</span> suggests that people's generalized "shoulds" and "musts" create their emotional and behavioral dysfunctions.
A famous example is given of the scenario when someone sets a goal of his/her happiness that they are loved by each and everyone around them, this is irrational belief which is actually impossible and moreover this hands over the option of happiness to other people than the person himself. <span />
Answer: CS(Conditioned Stimulus )
Explanation:
Conditioned stimulus is the factor that was at neutral state at previous time but after getting connected with unconditioned stimulus it produces a trigger in the form of conditioned response.
According to the question, door closing is conditioned stimulus because door gets combined with the closing action done by Dr. Meyer which generates a trigger that indicates students about pop quiz.
