D. lack of water because plant need water to survive
So what would happen if photosynthesis suddenly stopped happening? If photosynthesis came to an abrupt end, most plants would die within short order. ... That's because for photosynthesis to cease to exist, Earth would have to plunge into darkness.
Gestational age can also be estimated by measuring the fundal height. This is done by measuring from the pubic bone to the top of the uterus. The measurement in centimeters roughly equal to the gestational age in weeks from the last menstruation.
Population because if they don't get water every day they will start to die in their population will start to fade out and then they'll become extinct