<span>Guglielmo Marconi's work was in radio signals, and one of his inventions was the radio telegraph (AKA wireless telegraph)</span>
The Civil Rights action of the "March on Washington" included thousands of non-African Americans. The march took place on August 27, 1963 when thousands flocked to Washington and the next day on August 28, Martin Luther King Jr. gave his famous "I have a dream" speech.
Answer:
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Explanation:
Mechanical weathering breaks rocks into smaller pieces without changing their composition. Ice wedging and abrasion are two important processes of mechanical weathering. Chemical weathering breaks down rocks by forming new minerals that are stable at the Earth's surface. Physical, or mechanical, weathering happens when rock is broken through the force of another substance on the rock such as ice, running water, wind, rapid heating/cooling, or plant growth. Chemical weathering occurs when reactions between rock and another substance dissolve the rock, causing parts of it to fall away
