Sex linked inheritance is a trait that is passed through generations in which is linked directly to an individuals gender or sex. most of the time sex linked inheritance is seen in males however it can be viewed in females.
If you are implying one these choices not needed for survival it would be parents only when you can survive on your own (I'm not that sure but I hope this helped the slightest but)
Answer:
Littering and Destroying things. This affects the environment because animals could get ahold of the trash and you could me destroying their homes.
Explanation:
C. Potassium
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Hope this helps :)