What happens to the rate of photosynthesis when whether gets cold in many plants

Molecules of Carbon dioxide supply the carbon components of carbohydrates. In many plants, the rate of photosynthesis decreases when the weather becomes very cold. If the temperature are above or below this range, the enzymes may be affected, slowing down the rate of photosynthesis.

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c

i am positive it is c. condensing but i may be wrong