Read the followingpassage and answer the questiona 1-5 For thousand of year, agriculture was practiced without utilizing any artificial chemicals, such as artificial fertilizers and pesricides. The first generation of artificial fertilizers was developed during the mid-19th century. Being cheap, powerful and easy [গণিত] transport in bulk, these fertilizers soon became popular amongst the farmers all around the world. In addition, similar advances in chemical pesticides in 1940s, turned farming into a very fruitful business. both artificial However, after nearly a few decades, the studies revealed that both artificial fertilizers and pesticides had serious long term side effects including soil compaction, erosion, and reduction in soil fertility. Furthermore, scientists were concerned about toxic chemicals entering the food supply and [গণিত] human health. Due [গণিত] the above mentioned problems, organic farming as, an alternative [গণিত] current methods, gained a lot of attention in academic circles and soon became widely used farming approach. For one thing, organic farming excluded the use of synthetic pesticides, growth hormones, antibiotics, genetically modified seeds and animal breeds, as well as irrigation. Instead of artificial materials, organic farming relies on ecosystem management; meaning that even pesticides and fertilizes are derived from plants, animal wasters and minerals. The primary aim of this method is [গণিত] increas soil fertility, balance insect population, and reduce air, soil, and water pollution. Also from consumers [গণিত] perspective, this method is absolutely fruitful in terms of health-related issues. Q. The use of chemical materials in farming became so widespread because they were

ক. powerful but not cheap

খ. strong, inexpensive, and easy to carry

গ. easy to use with no side effects

ঘ. used for few productions

উত্তর: strong, inexpensive, and easy to carry

Admission ইউনিট A (বিজ্ঞান) University papers MCQ — Prosthuti প্রশ্নব্যাংক