Increase in greenhouse gas emission
Explanation:
Global average temperature of the earth is increasing due to a surge in the amount of greenhouse gases being emitted.
The major greenhouse gas is carbon dioxide.
This gas is produced by a wide range of industrial processes and combustion of fuels in automobiles.
Anomalous concentration of this gas in the atmosphere leads to an increase in earth's temperature.
These gases interacts with long wave radiation produced by the earth and prevents them from escaping. In turn, they warm the earth and keep it at fairly uniform temperature.
When these gases are too much in concentration they lead to an anomalous increase in temperature.
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True. Each contour line on a topographic map represent a certain elevation; the closer they are, the steeper the surface is. All points on a contour line are the same elevation.
X-Ray used to Take images of teeth and bones.
Ultraviolet night vision goggle
Answer:
The answer to your question is Qt = 15750 cal
Explanation:
Data
mass = m = 150 g
Initial temperature = T1 = 0°C
Final temperature = T2 = 25°C
Process
1.- Calculate the Latent heat of fusion
Latent heat of fusion for water = l = 80 cal/g
Heat = Q
Formula
Q = ml
Substitution
Q = (150)(80)
Simplification and result
Q = 12000 cal
2.- Calculate the Specific heat
Specific heat of water = C = 1 cal/g°C
Formula
Q = mCΔT
Substitution
Q = (150)(1)(25 - 0)
Simplification and result
Q = 3750 cal
3.- Calculate the total heat
Qt = 12000 + 3750
Qt = 15750 cal