Deep ocean currents (also known as Thermohaline Circulation) are caused by: ... The sinking and transport of large masses of cool water gives rise to the thermohaline circulation, which is driven by density gradients due to variations in temperature and salinity.
Answer:
The correct definitions are a, c and d
Explanation:
The definitions of system, heat energy and chemical energy are correct but the definition of surrounding is not correct.
Answer:
Spatially associated with certain public water pumps.
Explanation:
Dr. John Snow was a Physician and regarded as the father of epidemiology.
During the cholera outbreak in the 1800s which killed thousands of people in the United Kingdom , he traced the source of the outbreak.
Before then cholera was believed to be an airborne disease but he refuted this and helped in discovering that the source of the outbreak was as a result of certain public pumps. He then urged the council to disable the pumps and this helped in solving the cholera outbreak problem.
The correct answer is - wind turbines.
The wind turbines are exclusively dependent in their energy production on the winds. The winds are not the most predictable natural occurrence, and also the energy production depends on their speed, as well as how constant they are, thus making this type of renewable energy very unpredictable.