Answer:
D
Explanation:
it just is i dont know y i just know it is D
Your answer would be valence electrons, i believe.
High clouds include cirrus, cirrocumulus, and cirrostratus clouds. These clouds are made up of either ice or water droplets, but they are usually made up of ice crystals. Water clouds tend to have sharp edges, and ice clouds are more wispy.
Not sure if this helps, but check this link.
https://www.windows2universe.org/earth/Atmosphere/clouds/cloud_heights.html
Answer:
a region on an enzyme that binds to a protein or other substance during a reaction.
