Explain how the burning of fossil fuels could result in a rise in the temperature of the global environment. What are three ways in which humans affect the carbon cycle? What are the biological impacts of these
Explain the process of Glycolysis. How can nitrogen oxide (N_2O) be converted to a different nitrogen compound? Describe the water and carbon cycle. How do they contribute to climate change? What is the role of a catalyst in a chemical reaction? Briefly describe how it accomplishes its rol...
In a two-stroke diesel, the complete cycle happens as the piston moves up and down just once. Confusingly, there are really three stages in a two-stroke cycle: Exhaust and intake: Fresh air is blown into the side of the cylinder, pushing the old exhaust out through valves at the top....
As an ionic solid dissolves in water, the temperature of the solution increases. What best describes the enthalpy and entropy of the solution? A. The enthalpy change is negative, and the entropy decre For the dissolution of HCl(g) in water to form concentrated hyd...
What changed things? The invention of the car. Wheels may be 5500 years old, but the cars we drive round in today made their debut only in 1885. [1] That was when German engineer Karl Benz (1844–1929) fastened a small gasoline (petrol) engine to a three-wheeled cart and made the ...
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Describe the process of the Krebs cycle and why it is important to the metabolic pathways of cellular respiration? Explain the process of glycolysis, Kreb's cycle and electron transport chain. 1. How many and where the ATPs are generated? 2. What happens to 6 carbons in the glucose molecul...
Why is decay important in an ecosystem? How was stratification related to economic specialization? Why are decomposers important in the carbon cycle? Why are biotic and abiotic factors so important to the ecosystem? What is an example of interaction in an ecosystem?
In a dishwasher, the opposite happens: the dishes and cutlery stay still in plastic baskets while pressurized jets of hot water shoot all around them. That means a dishwasher has to be sealed shut all the time it's operating or the water would fire off in all directions—all over your ...
(for example, steam engines) burn the fuel in one place and produce the power in another part of the same machine; internal combustion engines (such as car engines) burn the fuel and make the power in exactly the same place (in a car, it all happens in the super-strong metal ...