Explanation:
When using chromatography, the 2 solutes in the solvent paper should have different Rf values from the base line to identify them as different compounds.
If they were to have the same speed in the solvent, they would appear as 1 dot instead of 2 separate dots, which is a false reading.
Cell membrane is made up of Lipid Bilayer which are fluid in nature , means they move continuosly , due to this fluid nature they are selectively permeable to compounds.
Answer:
I think that it is C.
Explanation:
I hope that this can help you, but I want to make this clear.
I AM NOT COMPLETELY SURE.
Two stages that occur in the carbon cycle are: Animal respiration and emissions from factories
Animal respiration is carbon dioxide and water that is released into the atmosphere .
carbon emissions can be absorbed by plants and trees during photosynthesis to produce food.
2. Solar power is a sustainable way to gather energy as it does not harm the atmosphere and carbon emissions. However,sunlight may not always be available in winter months due to shorter days and longer nights. solar panels can also be very expensive to set up, but costs can be broken even over a period of years.
Nuclear power can be a cheap way to produce electricity as deposits of uranium and plutonium will last for the next couple of thousands of years (3000-4000 years). power plants can cost colossal amounts to set up but have relatively low running costs. please like and thank me that was a lot to write
