Answer:
The correct answer is option B, that is, phthalates.
Explanation:
A class of chemicals that are used to soften plastics like PVC, function as fixatives and solvents and bind fragrances in the products are known as phthalates. The human encountering with the chemicals can take place via:
1. Inhalation of fragrances or fumes from fixatives and solvents,
2. Chewing on a plastic toy by a child that develops small openings in the plastic, which provides a space for the chemical to get leached from the toy into the mouth of the child.
3. Through the absorption of perfumes, lotion, and deodorants.
The serious health effects of the chemicals comprise developmental and reproductive issues, hormone disruption, low sperm count, asthma, undescended testes, preterm birth, premature puberty, and development of certain kinds of cancers.
A. Regularly test the water in residents' homes
Explanation:
The best way to have kept the water quality in check would have been to constantly and regularly test the water in residents' homes.
Lead is used in making pipes due to its very unique properties and availability. Over time, lead can enter the water it is carrying in dissolved form.
Increasing amount of lead in the water will eventually become toxic when an anomalous concentration is reached.
The best way to monitor the trend is to simply check the water in residential homes from time to time for dissolved lead.
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Chemistry of lead brainly.com/question/5852049
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Answer:
D.Duplicate halves of a chromosome
Answer:
The statement ''there are lots of things that can be eaten and in many ways " is true.
There are lot of things to eat means, all the living beings rely on different sources of food and hence categorised as herbivores, carnivores and omnivores.
Food source such as plants can be eaten raw as well as cooked or some of the vegetable are eaten in liquid form as well. same with meat or animal source food, there are different ways to eat non-vegetraian food such as raw, steamed, and completely cooked.
Hence, it proves that ''there are lots of things that can be eaten and in many ways ".
Answer:
hox genes are a subset of regulatory genes that encode transcription factors and they are important for embryonic development. they are activated by a cascade of regulatory genes and the proteins encoded by the early genes regulate expressions of later genes
Explanation:
