How many lightyears are in 3.8 parsecs?

need the work for it too !! need it in 3 hrs max

Select the correct answer how does the heat content of the reaction change in the process of photosynthesis when a glucose molecule is formed? ca the value of is negative the value of qis positive the value of a remains constant the value of a decreases the value of equals zero e

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?

Stage in which a star’s outer layers have started to cool and grow outward?