I think it’s Decreased productivity but I might be wrong.
Answer:
The air at higher altitudes is colder, less dense, and contains fewer oxygen molecules. This means that you need to take more breaths in order to get the same amount of oxygen as you would at lower altitudes. The higher the elevation, the more difficult breathing becomes
Explanation:
A. ocean temperatures declining
Answer: Gender; Sex
Explanation:
Often people confuse the words gender and sex and often use them together or interchangeably. Gender is the social and the psychological role which makes one either male or female. Then, sex is the the physical aspects of being male or female.
Sex are the biological differences that exist between the males and the females and this include genetic differences. Gender has to do with the characteristics possessed by the males and females.