I think they use the scientific method
answer:
Where would you expect to find the kelp forest, a type of algae, pictured here and why? Algae live only in the epipelagic zone because it is the only zone with enough light for photosynthesis. During an El Niño year, there is increased precipitation in the Southern United States, but the north is warmer and dry
One's material and one's apparatus?
Answer:
Since genetically engineered (GE) crops were introduced in 1996, their use in the United States has grown rapidly, accounting for 80-90 percent of soybean, corn, and cotton acreage in 2009. To date, crops with traits that provide resistance to some herbicides and to specific insect pests have benefited adopting farmers by reducing crop losses to insect damage, by increasing flexibility in time management, and by facilitating the use of more environmentally friendly pesticides and tillage practices. However, excessive reliance on a single technology combined with a lack of diverse farming practices could undermine the economic and environmental gains from these GE crops. Other challenges could hinder the application of the technology to a broader spectrum of crops and uses.
Explanation:
