Weegy: Refraction is the bending of a wave when it enters a medium where it's speed is different.
User: The object distance for a concave lens is 8.0 cm, and the image distance is 12.0 cm. The height of the object is 4.0 cm. What is the height of the image?
0.50 cm
2.7 cm
18 cm
6.0 cm
Weegy: 6.0cm
User: What type of solar radiation does not reach the surface of the Earth?
visual radiation
infrared radiation
ultraviolet radiation
gamma radiation
Weegy: gamma radiation does not reach the surface of the Earth.
User: The movement of thermal energy is controlled by _____.
the laws of thermodynamics
the specific heat of substances
the circulation of the atmosphere
the production of greenhouse gases
Weegy: The movement of thermal energy is controlled by the Laws of thermodynamics.
User: Some scientists argue that global warming is related to _____.
burning fossil fuels to produce energy
increased use of fertilizers
loss of forested areas
all of the above
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