Advancements in the area of agriculture has started to depend on technology sources for better yield and technology advancements have in the areas of irrigation, and drainage. even the packing, processing, and marketing of agricultural products are also the activities which are influenced by science. global positioning satellite (gps) technology has vastly innovated agriculture. how does gps technology contribute to farming by making planting, fertilization, and crop harvesting easier? a) it tells the farmer when rain is coming. b) it cost too much, so it makes crops more expensive. c) gps makes the farmer lazy because he doesn't have to work as hard. d) gps technology has led development of robotic tractors for planting, fertilization, and crop harvesting.

Answer is D. GPS technology has led development of robotic tractors for planting, fertilization, and crop harvesting.

Before advancement of the technology it was difficult for farmers to carry out farm planning, field mapping, soil sampling, tractor guidance, crop scouting, and yield mapping. But with the development of Global Positioning System (GPS), farmers can take informed decision about application of pesticides, herbicides, and fertilizers, and better control to disperse these chemicals. Farmers can use data in reducing expense, better harvesting technique and a higher yield, and creating a more environmentally friendly farm.

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".