Urban sprawl can lead to a chain reaction of problems as the human population of a regions increases. Which of the following is a problem of urbanization that affects the environment? - Lack of sufficient sewage facilities can lead to waterborne diseases.
- There are not enough hospitals and social services for the population.
- Heavily paved cities and fewer trees add more heat to the atmosphere.
- Lack of resources can cause food shortages, malnutrition, or starvation.

Which of the following claims does the author support the least

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.)chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.

What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.