what does an additive meanor how do additives affect plant growth
An additive is something extra. For instance, fluoride is a common additive to water.can affect plant growth, by giving extra things that the plants either may need in order to grow (aiding plant growth), or that can act as poison for the plants (inhibiting plant growth). For instance, adding salt to water, making salt water, can kill certain grasses - but can aid the growth of other grasses (depending on what salt was added).
