Thousands of young families moved "over the hills" and into the san fernando valley, a suburb of los angeles, after world war ii. new neighborhoods were springing up, replacing orange groves and open space; roads and schools quickly sprang into existence, trying to keep pace with the rapid population growth. ringed by beautiful mountains, the entire los angeles basin looked like a new, green, sun-filled paradise to the families seeking a fresh start. in the early 1950s, one of the common family chores in los angeles was to carry the trash out to the stone incinerator behind the garage where each family burned all of their dry trash. "wet" garbage was collected and taken to a city dump, where it was burned by the city. everyone throughout the city either used an incinerator or burned things in an open trash pile; there were over 400,000 backyard trash incinerators. on warm afternoons, eyes would sometimes sting and burn. people would stop, close their eyes, and let the cleansing tears refresh irritated eyes. they accepted this as a normal part of life in sunny california. in the 1950s, los angeles became famous for its smog. one part of the problem was
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Biology, 21.06.2019 16:00, farhadi2
The health, management and conservation of biodiversity, is a challenge facing ecosystems worldwide. the major factors that affect the health and function of the great barrier reef are climate change and pollution. which question investigates the effects of a biotic factor on the reef ecosystem?
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Biology, 22.06.2019 00:10, maddie3354
Recent research by marine biologists suggests that bottlenose dolphins have names for themselves. scientists played sounds they had identified as the names of particular dolphins, putting them through a synthesizer so that they did not sound like the voices of particular dolphins. the researchers found that dolphins would respond to the names of other dolphins that they were related to or associated with, but they ignored the names of strangers. this discovery suggests a much greater degree of self-awareness in aquatic mammals than was previously suspected. if this research holds up, what does it suggest about dolphins?
Answers: 3
Biology, 22.06.2019 03:00, babygirlqueen5588
Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.
Answers: 2
Thousands of young families moved "over the hills" and into the san fernando valley, a suburb of los...
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