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Silicon Valley Which industrial region around the southern shores of San Francisco Bay, USA was named for the dense concentration of electronics and computer companies that sprang up there since the mid-20th century? echolocation What remarkable natural ability enables certain animals to navigate a...

Silicon Valley Which industrial region around the southern shores of San Francisco Bay, USA was named for the dense concentration of electronics and computer companies that sprang up there since the mid-20th century? echolocation What remarkable natural ability enables certain animals to navigate and locate objects by emitting sound waves and interpreting the reflected signals? This sensory mechanism is particularly well-developed in animals like bats.