Correct answer: A). Ethanol
Bio-ethanol is an alcohol which is produced by the process of fermentation of crops. It is mainly produced by the fermentation of carbohydrates such as starch, which is found in sugarcane, sweet potato, corn etc.
It is also produced from cellulose biomass, which is derived from the non-food source like grass and trees.
It is produced through a biological process like anaerobic digestion, rather than geological process, which is used for the formation of fossil fuel like coal, petroleum.
burning wood
hot stove
gas pump
A water fall can be used as a source of renewable energy.
It is obtained from sources that can be replenished. They can not be depleted with use.
Renewable energy includes solar energy, geothermal energy, wind energy, etc.
It can be used to generate hydroelectricity.
To learn more about renewable energy and hydroelectricity here,
#SPJ2
Answer:
solar energy, wind energy, hydropower, geothermal energy, and biomass energy. These types of energy sources are different from fossil fuels, such as coal, oil, and natural gas.
Answer: True.
Explanation:
Organic fats are nonpolar molecules, while water is a polar molecule.
Since fats do not have any polar part in its structure, to be dissolved in water they would have to break some of water's hydrogen bonds. But this does not happen, so the fat is forced to stay separate from the water. This means nonpolar molecules are repelled by water and do not dissolve in it. They are hydrophobic compounds. So the lipids just float in the water without blending into it.
Answer:
Decrease in cardiac output
Explanation:
Blood pressure may be defined as the pressure exerts by the artery on the walls during the blood flow. The systolic pressure is used for the calculation of the blood pressure.
The blood pressure depends upon the cardiac output, heart beats and rate of the blood flow. The cardiac output is the volume of blood pumped in the body per minute. The decrease in the cardiac output will ultimately results in the decrease in the blood pressure.
Thus, the correct answer is decrease in cardiac output.