Who referred transpiration as unavoidable evil and necessary evil?

Friction is a necessary evil.

Transpiration is unavoidable, hence is known as unavoidable______

Why is transpiration called a necessary evil?

"Transpiration is a necessary evil" was given by .... .....

Which of the following is called necessary evil?

Who referred virus as "contagium vivum fluidum"?

Paragraph-based questions : Green corridor refers to a special road route that enables harvested organs meant for transplants to reach the destined hospital. A 45-year-old woman, a victim of a railway accident. was declared brain dead, her husband and children agreed to donate her kidneys, liver and heart. One of her kidneys was transplanted to a patient in MGM Hospital and the second kidney helped a patient in Jaslok hospital. Her liver helped the transplant of a patient in Wockhardt Hospital. And her heart was sent to Fortis to the patient on a super urgent priority list, transported via a green corridor covering 18 km in less than 16 minutes. This was possible due to Green corridor. Who takes the decision to donate the organs?

Enlist the evil quartet of loss of biodiversity.