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<h2>
WHAT IS A COMPOUND ?</h2><h2>
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ᴛʜᴇ ᴀɴꜱᴡᴇʀ ᴛᴏ ᴛʜɪꜱ ɪꜱ :

ʙᴇᴄᴀᴜꜱᴇ ꜱᴏᴅɪᴜᴍ ɪꜱ ᴀ ᴄᴏᴍᴘᴏᴜɴᴅ.
Hope It Helped!
And Tell me if The answer is wrong . . .
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Good Luck With Your Assignment!</u></h2><h2><u>
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#LearnWithBrainly

ᴊᴀᴄᴇ ノシ
Answer:
That's true. What are you asking?
Answer:
Existence
Explanation:
Energy is required for anything to occur, without it there would be no 'causality' for things to change from one moment to the next.
Hope this helped!!!
Answer:
The longer the path length, the more molecules there are in the path of the beam of radiation, therefore the absorbance goes up. As you likely know from other experiences, a particular chemical species absorbs some wavelengths of radiation and not others