Explanation:
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Answer:
Burning of fossil fuels
Explanation:
Human activities that increase the amount of carbon dioxide in the atmosphere are;
1) Burning of fossil fuels in industrial and internal combustion engines
2) Depletion of the available forest cover, due to the consumption of wood as a raw material
3) Farming expansion that lead to clearing of forests for farming
4) Industrial activities such as the production of cement
5) Deforestation to provide land for development including buildings and infrastructure.
The net upward force that a fluid exerts on an immersed object. The ratio of force to the area over which that force is distributed. More pressure the deeper you go
Hydrogen reacts with oxygen to form water based on the following equation:
2H2 + O2 ..............> 2H2O
This means that 4 grams of hydrogen are required to react with 32 grams of oxygen to release 36 grams of water.
We need to calculate how munch oxygen is needed to react with 4.8 grams of hydrogen. We can do this using cross multiplication as follows:
amount of oxygen = (4.8x32) / 4 = 38.4 grams
This means that we have no limiting reagent here and both reactants will completely react.
We know that 4 grams of hydrogen are required to produce 36 grams of water. Therefore:
amount of water produced from 4.8 grams of hydrogen = (4.8 x 36) /4 = 43.2 grams
Answer:
Losses are due to inefficiencies of the motor, and friction on moving parts.