Answer:
sophisticated irrigation, chemical fertilizers, chemical pesticides
Explanation:
The use of irrigation to provide needed water and the use of natural fertilizers to promote crop growth are farming methods that have been practiced for centuries. More sophisticated irrigation techniques, various chemical pesticides, and modern chemical fertilizers have been developed in the twentieth century.
<h2>Answer:</h2>
False
<h2>Explanation:</h2>
Water is perhaps the most important component of any ecosystem. All living organisms need water to grow and survive. The organisms involved in this cycle are plants, animals, bacteria and decomposers. All of them use water for their own processes and functions. The processes involved are evaporation, condensation, sublimation, precipitation, transpiration, runoff, and infiltration. Since plants and animals both need water in very greater amount therefore we cannot neglect their importance in water cycle.
Antibodies to common microorganisms have been developed by infancy. <span>An </span>antibody<span> (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein produced mainly by plasma cells that is used by the immune system to identify and neutralize pathogens such as bacteria and viruses.</span>
