Because the molecules that are being transported is moving against its concentration. gradient. in other words, its moving from where it's low in concentration to where it's high in concentration.
A genetically modified plant contains altered or modified DNA, by the process of genetic engineering. A vegetarian should not be much concerned about an animal gene being inserted into the plant-based foods. These genes are inserted to make food healthy and more nutritious, and there is no meat. The whole process is humane and therefore, it should not be a matter of concern.
Some pesticides contain nutrients that are beneficial to the soil
It’s D. Oxygen. It is not a greenhouse gas
