Briefly describe the carbon cycle
What will be an ideal response?
Answer: The carbon cycle is the movement of carbon among the atmosphere, hydrosphere, biosphere, and lithosphere as a result of processes such as photosynthesis and respiration, sedimentation, weathering, and fossil-fuel combustion
In the carbon cycle, carbon in the form of atmospheric carbon dioxide (CO2) is incorporated into carbohydrates in plant tissues through photosynthesis. Animals consume plants and use the plant carbohydrates for their own life processes. Carbon is stored in biomass and animals. Through respiration, carbon is returned to the atmosphere as CO2. It is also added to the atmosphere by the
combustion of fossil fuels. These three processes - photosynthesis, respiration, and combustion help cycle carbon and oxygen back and forth between living things and the environment.
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The British gained the island on which Hong Kong is located by the Treaty of
A. Beijing B. London C. Nanjing D. Guangzhou
Which of the following is not a Boolean connector?
A. XOR B. AND C. AT LEAST D. OR
When tornadoes develop it is usually in association with air-mass thunderstorms
Indicate whether the statement is true or false
The soil at the base of a hill slope is likely to be ____ compared to the soil on the slope.
(a) thicker (b) wetter (c) more nutrient-rich (d) all of the above