Number 2 but I am not sure sorry dude
Answer:
Because each subject in an experiment has to have equal conditions to ensure the most accurate results. And water temperature is known to impact plant growth. An experiment using different water temperatures is a terribly inaccurate experiment.
Latitude influences your weather by determining which type of weather systems will cross the area and how frequently, elevation influences your weather because higher elevations have lower air pressure than lower elevations, thus allowing the air to be colder on average. Local geography influences your weather due to different areas being nearby mountain ranges, bodies of water, and other things that can create or dissimilate different weather systems.
The ovary of a flower in a plant is where it produces seeds and develops fruits
