This category of endangerment has so few individual survivors that the species could soon become extinct: A. Invasive species
B. Threatened species
C. Endangered species
D. Endemic species
E. Red list species

Endangered Species

Explanation:

C. Endangered species

d. making up measurements to record.

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a