<span>Among the decisions gave, a case of two rep is doing one pull-up followed by a second pull-up. For instance, one rep would be 15 pull ups then you would take a rest and do another rep so answer decision two would be nearest to remedy the best approach to worded might be bizarre.</span>
This is because the photosynthesis require optimum pH to be slightly alkaline. Bases, such as sodium hydroxide (NaOH), are necessary to raise the pH to levels that are ideal for photosynthesis to occur.
Since, pH in soil, fresh water or groundwater becomes acidic, plant uptake and photosynthesis rates decrease. Sodium hydroxide (NaOH) raises pH levels and can affect photosynthesis rates.
Answer:
a mineral is scraped or rubbed hardly on sandpaper or unglazed porcelain
( please mark me as brainliest that would be most appreiciated )
To cool down what ever's ging through this piroid, so that an engine doesn't over heat