Answer:
the answers are
A
C
C
A
100% correct
Explanation:
A. Local winds occur over a small area, while global winds occur over a large area.
B. Local winds blow in from the ocean, while global winds do not.
C. Local winds are considered breezes, while global winds produce mostly storms.
D. Local winds are created by the unequal heating of Earth's surface, while global winds are produced by polar temperature zones.
B. the transmission of heat across matter
C. the electromagnetic radiation from the surface of an object which is due to the object's temperature
D. the transmission of heat across empty space
Answer: A. the transfer of heat by currents
Explanation: There are three modes of heat transfer:
1) Conduction: This type of heat transfer happens when there is direct contact between the two object. Example: heating a pan on stove.
2) Convection: This type of heat transfer happens when there is a movement of fluid (liquid or gas) due to the movement of hot layers to the top and cold layers to the bottom which leads to convection currents. Example: Heating of swimming pool.
3) Radiation: This type of heat transfer happens when there is direct transfer of energy through space. Example: Heating of earth's surface.
B. The transmission of heat across matter is conduction.
C. The electromagnetic radiation from the surface of an object which is due to the object's temperature is radiation.
D. The transmission of heat across empty space is radiation.
Answer:
A: The transfer of heat by currents.
Explanation:
Convection is the transfer of heat by currents, typically within a liquid or a gas. When heat is transferred by convection, matter flows.
Select one:
O a. 7.98
Ob.0.263
C. 8.02
O d. 228
Answer:
Option A. 7.98 L.
Explanation:
The following data were obtained from the question:
Initial volume (V1) = 8 L
Initial temperature (T1) = 9.9 °C
Final temperature (T2) = 9.3 °C
Final volume (V2) =..?
Next, we shall convert celsius temperature to Kelvin temperature. This can be achieved as shown below:
Temperature (K) = temperature (°C) + 273
T(K) = T (°C) + 273
Initial temperature (T1) = 9.9 °C
Initial temperature (T1) = 9.9 °C + 273 = 282.9 K
Final temperature (T2) = 9.3 °C
Final temperature (T2) = 9.3 °C + 273 = 282.3 K
Finally, we shall determine the new volume of the gas as follow:
Initial volume (V1) = 8 L
Initial temperature (T1) = 282.9 K
Final temperature (T2) = 282.3 K
Final volume (V2) =..?
V1/T1 = V2/T2
8/282.9 = V2/282.3
Cross multiply
282.9 x V2 = 8 x 282.3
Divide both side by 282.9
V2 = (8 x 282.3)/282.9
V2 = 7.98 L
Therefore, the new volume of the gas is 7.98 L
Fossil fuels are a nonrenewable resource that won't last forever.
Alternative sources of energy produce too much pollution.
Answer:
b
Explanation:
Answer:
Environmental and economic benefits of using renewable energy include: Generating energy that produces no greenhouse gas emissions from fossil fuels and reduces some types of air pollution. Diversifying energy supply and reducing dependence on imported fuels.
Explanation: