1. Why are bio-pesticides a better choice than other pesticides? 2. Define the following: a. Reproduction b. Germination Seed dispersal 3. Why do farmers spray insecticides and pesticides in the fields? 4. Name the three main kinds of crops. Give two examples of each. F. Answe C.
Answers
Answer:
Explanation:
1. Biopesticides may directly kill harmful organisms, or they may work indirectly by interfering with reproduction or simply repelling pests with substances they don't like. Most biopesticides do not provide a “quick kill”, but rather suppress pests so that they can be managed over time.
Reproduction (or procreation or breeding) is the biological process by which new individual organisms - "offspring" - are produced from their "parents". Reproduction is a fundamental feature of all known life; each individual organism exists as the result of reproduction.
2. Germination refers to the process by which an organism grows from a seed or a spore. The most common forms of germination include a seed sprouting to form a seedling and the formation of a sporeling from a spore. Thus, germination occurs primarily in plant and fungal species.
3. Farmers spray to mitigate crop damage caused by pests. A pest is any biological organism, including weeds, pathogens, and arthropods, that interferes with the production of crops affecting quality and/or yield. ... Pesticides work in many different ways by affecting their target, whether it be a weed, pest, or disease.
4. Explanation:
Rabi crops.
example-Wheat,Mustard.
Kharif crop.
example-Maize,Rice.
Zaid Crops.
Example-Pumpkin,Cucumber.