Answer:
greenhouse gases trap more heat in Earth's atmosphere.
Explanation:
the burning of fossil fuels emits large quantities of CO2 into the atmosphere, which contributes to cause climate change by trapping heat.
<span>Carbon dioxide is a colorless and odorless gas that is vital to life on Earth. This naturally occurring chemical compound is made up of a carbon atom covalently double bonded to two oxygen atoms. Carbon dioxide exists in Earth's atmosphere as a trace gas at a concentration of about 0.04 percent by volume. Natural sources include volcanoes, hot springs and geysers, and it is freed from carbonate rocks by dissolution in water and acids. Because carbon dioxide is soluble in water, it occurs naturally in groundwater, rivers and lakes, in ice caps and glaciers and also in seawater. It is present in deposits of petroleum and natural gas.</span>
The answer is almost definitely A seeing as the others are either based on the need to breathe (d) or body parts (b and c). Hope this helped. <span />
Answer:
There is a great difference between light and scanning electron microscope. The source of illumination is light rays in light microscope while in scanning electron microscope electrons are the source of illumination.
The resolving and magnification power of scanning electron microscope is much greater than that of a light microscope. The magnifying power of a light microscope is 1000X and of electron microscope is 10,00,000X.
In light microscope image is seen through the eyepiece while in scanning electron microscope it is seen on a fluorescent screen. Even small specimens up to 0.1 micrometers can be seen by scanning electron microscope which is not possible to see by light microscope.
Answer:
The light- independent reaction uses the energy from <u>NADPH and ATP</u> to produce <u>Sugar</u>.
Explanation:
The end product of light- independent reaction is sugar (glucose) which is made from carbon dioxide. The energy for these comes from the end results of light- dependent reactions .
This includes NADPH and ATP. This process is termed as the Calvin Cycle.
Steps of the Calvin Cycle include:
1. The formationof a six carbon sugar , Phosphoglycerate, by combination of a five carbon sugar, Ribulose biphosphate (RuBP) and Carbon dioxide.
2. The formation of two molecules of Triose Phosphate by reducing Phosphoglycerate using hydrogen atoms of the light- dependent reactions. This reaction uses ATP.
3. ATP is also used to convert some of the Triose Phosphate back to RuBP.
4. GLUCOSE is produced using the rest Triose Phosphate.
