Abiotic stressors such as temperature extremes or lack of water trigger , which aids in preventing water loss from the plant.
a. circadian rhythms
b. vernalization
c. systemic acquired resistance
d. hypersensitivity
e. ABA synthesis

Option B) Vernalization

Abiotic stressors such as temperature extremes or lack of water trigger ABA synthesis, which aids in preventing water loss from the plant.

Explanation:

Either during temperature extremes like very low temperatures or drought conditions, the production of absiccisic acid (ABA), a plant hormone is elevated.

This is due to the need for regulate water levels, and stomatal closure to reduce water loss for plant survival.

Thus, ABA synthesis is the answer

a few examples of ethical concerns involving genetically engineering of humans include

-privacy of genetically tested people

- potential side effects

-long term effects

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.