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Q-4 Answer correctly. (9)(1) How does the vaccine help to prevent disease? (2) Why do birds migrate? (3) Which irrigation system is useful in water scarcity area ? Why ? |
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Answer» Answer: 1. Vaccines help your IMMUNE system fight infections faster and more effectively. When you get a vaccine, it sparks your immune response, helping your body fight off and remember the germ so it can attack it if the germ EVER invades again.2.The most common pattern is that birds migrate to the temperate or arctic Northern Hemisphere to breed in the summer and migrate south to warmer regions for the winter. There are four main flyways, or migration routes, in North America that most birds follow between their summer and winter locations.3.Drip irrigationDrip irrigation is the BEST method of irrigation when there is scarcity of water because in this water is PROVIDED directly to the roots drop by drop and thus preventingwater loss.Explanation: PLS mark me as brainliest |
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