Answer:
Exothermic Reaction
Explanation:
Its a combustion reaction and they are always exothermic in nature.
Heat is energy, that can be transferred to another item, which is “less hot”.
The
Earth is composed of four different layers. Many geologists believe
that as the Earth cooled the heavier, denser materials sank to the
center and the lighter materials rose to the top. Because of this, the
crust is made of the lightest materials (rock- basalts and granites) and
the core consists of heavy metals (nickel and iron).
<span>The crust is the layer that you live on, and it is the most widely studied and understood. The mantle
is much hotter and has the ability to flow. The Outer and Inner Cores
are hotter still with pressures so great that you would be squeezed into
a ball smaller than a marble if you were able to go to the center of
the Earth!!!!!!</span>
Answer: 4 hours
Explanation:
It takes the kayak 1 minute to travel 35 meters.
Divide the total (8400m) by the amount of meters per minute (35m)
Now convert into hours. (Remember that 1h has 60min)
Answer:
5×-10^8
That is the the scintific notation for 0.00000005
Answer=5×-10^8
