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Different forms of communication often change as technology advances. Traditional communication devices include television, radio, newspapers, letters, and magazines. These have been around for decades, some of them for centuries.
Modern communication includes texting, email, and FaceTime. These methods have been around for less long.
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Answer:
Financial markets play a critical role in the accumulation of capital and the production of goods and services. ... In addition, efficient financial markets and institutions tend to lower search and transactions costs in the economy.
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Answer:
Most national parks preserve unique geographic features; Everglades National Park was the first created to protect a fragile ecosystem. The Everglades are a network of wetlands and forests fed by a river flowing 0.25 miles (0.40 km) per day out of Lake Okeechobee, southwest into Florida Bay.
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Answer:
Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. The cloud collapsed, possibly due to the shockwave of a nearby exploding star, called a supernova. When this dust cloud collapsed, it formed a solar nebula—a spinning, swirling disk of material.
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