71. Which of the following is not a layer of the Earth’s atmosphere?
A) Thermosphere
B) Stratosphere
C) Mesosphere
D) Hydrosphere
Answer: D) Hydrosphere
72. What is the term used to describe the process of warm air rising and cool air sinking, creating air currents?
A) Convection
B) Radiation
C) Advection
D) Conduction
Answer: A) Convection
73. Which of the following is not a type of precipitation?
A) Rain
B) Snow
C) Hail
D) Fog
Answer: D) Fog
74. What is the term used to describe the measure of the amount of water vapor in the air?
A) Humidity
B) Dew point
C) Precipitation
D) Evaporation
Answer: A) Humidity
75. Which of the following is not a type of climate?
A) Tropical
B) Arctic
C) Alpine
D) Subatomic
Answer: D) Subatomic