Runner 2 sees Runner 1 passing him with a velocity of 17 m/s west.
The mantle is
the most solid part of the Earth’s interior. The upper mantle is the region
from the crust to depth of 410 km. From here to 660 km is the transition
mantle. In this region the rocks are radically transformed.
<span>After
this the lower mantle begins.</span>
The answer is Efflorescent hydrate. <span>They are chemical substances that, when exposed to the atmosphere, release water. A typical example of this chemical reaction is cement, when mixed with water, the mixture hardens due to hydration, then the cement starts to lose water.</span>
Forces always work in the direction of their application.
Eg- Gravitational forces acts downwards due to the earth's pull.