AP Biology : Ecology
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Example Question #31 : Understanding Eco Chemical Cycles
Which of the following is required for water to change states within the water cycle?
Energy exchange
Ionization
Hydrolysis
None of these
Energy exchange
Energy is needed for water to enter different stages of the water cycle (condensation, precipitation, and evaporation). This leads to a change in temperature.
Example Question #61 : Ecology
Which of the following describes the precipitation stage of the water cycle?
Flow of water from surface into the ground
Condensed water vapor falling to Earth
Conversion of liquid water to gaseous water
Runoff produced by melting snow
Condensed water vapor falling to Earth
The precipitation stage of the water cycle is when condensed water vapor falls to Earth. Precipitation exists in various forms that include rain, snow, and hail.
Example Question #31 : Understanding Eco Chemical Cycles
Which of the following is not a type of precipitation?
Runoff
Rain
Sleet
Snow
Runoff
Precipitation is when condensed water vapor falls to Earth. Common types of precipitation include rain, sleet, and snow. In contrast, runoff is water flow across the Earth’s surface.
Example Question #31 : Understanding Eco Chemical Cycles
Which of the following impedes the precipitation stage of the water cycle?
Interception
Infiltration
Runoff
Snowmelt
Interception
In the precipitation stage of the water cycle, condensed water vapor falls to the Earth’s surface; however, a tree canopy, for instance, may block this precipitation, preventing the precipitation from reaching the Earth’s surface. The intercepted precipitation then evaporates back into the Earth’s atmosphere.
Example Question #61 : Ecology
Which of the following is an impact of snow precipitation?
Transpiration
Advection
Canopy interference
Snowmelt
Snowmelt
Snowmelt is a type of runoff that results from melting snow.
Example Question #32 : Understanding Eco Chemical Cycles
Which of the following best describes runoff?
The flow of water underground
The flow of water over the Earth's surface
The changing of water vapor to ice
Transformation of water from liquid to gaseous phase
The flow of water over the Earth's surface
Runoff, or surface runoff, is the flow of water over the Earth’s surface. Runoff occurs when there is an excess of water on the surface due to excessive precipitation. The excessive precipitation leads to the full saturation of soil, resulting in water flowing over the surface.
Example Question #37 : Understanding Eco Chemical Cycles
During the infiltration process of the water cycle, water travels from the ground surface to which of the following locations?
Into the soil
Into roots of a plant
Across the land
Atmosphere
Into the soil
Infiltration is a process in the water cycle in which water on the ground’s surface enters the soil.
Example Question #61 : Ecology
Which of the following best explains the difference between infiltration and subsurface flow?
In infiltration, water moves into the soil and in subsurface flow water moves below the ground surface
Both infiltration and subsurface flow take place on the ground surface
Infiltration takes place under the ground surface while subsurface flow takes place on the ground surface
In subsurface flow, water moves into the soil and in infiltration, water moves below the ground surface
In infiltration, water moves into the soil and in subsurface flow water moves below the ground surface
Infiltration is a process in the water cycle in which water moves from the ground’s surface into the soil. Subsurface flow is another process where water flows below the ground surface; therefore, the difference between the two is the origin of the flowing water.
Example Question #39 : Understanding Eco Chemical Cycles
Evaporation is a stage in the water cycle that involves a phase change of water. Which of the following best describes this phase change?
Liquid to gas
Solid to gas
Solid to liquid
Gas to liquid
Liquid to gas
Evaporation is one of three main stages of the water cycle. In this process, water changes phases from the liquid to the gas phase.
Example Question #62 : Ecology
Which of the following is true regarding the process of sublimation?
It is the conversion of water from a solid to a gaseous state
All of these
In sublimation, water doesn't pass through the intermediate liquid phase
It is an endothermic reaction
All of these
Sublimation is the process in which water converts from a solid to a gaseous phase without passing through the intermediate liquid phase. Sublimation is an endothermic reaction: it requires the absorption of energy in the form of heat.
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