Answer:
The UV radiations from sun reaches earth’s surface through the atmosphere. The earth’s surface absorbs some of the heat and emits the heat energy. This emitted heat energy is blocked by greenhouse gases.
The application of spectroscopy from the list given is : (B). determining the distance and velocity of galaxies
<h3>Meaning of spectroscopy</h3>
Spectroscopy is the branch of science, designed to investigate and measure the amount of spectra that is produced when a matter emits electromagnetic radiation or interacts with electromagnetic radiation.
Spectroscopy can also be said to mean the study of matters radiation or light emission and absorption
In conclusion. the application of spectroscopy is determining the distance and velocity of galaxies
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Endoskeleton is the internal support of the structure of an organism. an exoskeleton is the external support
Transpiration is the process in which moisture is carried through plants from roots to little pores on the bottom of leaves, where it changes to vapor and is discharged to the atmosphere<span>.
</span>Leaf surfaces are dotted with pores called stomata.<span> It is a tiny opening or pore that is used for gas exchange. They are mostly found on the under-surface of plant leaves.</span>
Blood enters the pulmonary vein with close to 100% of the blinding site for oxygen saturated.