Elements emit colours when heated because electrons in atoms can have only certain allowed energies.Heating an atom excites its electrons and they jump to higher energy levels. When the electrons return to lower energy levels, they emit energy in the form of light. Every element has a different number of electrons and a different set of energy levels. Thus, each element emits its own set of colours. See, for example, mercury and neon above. Those colours are as distinctive to each element as fingerprints are to people.
Answer:
A. Keep it, because it uses descriptive language to convey the writer’s perspective on advances in robotics and set up the topic of the passage.
Explanation:
Answer A
Correct. The underlined text uses descriptive adjectives and adverbs to describe today’s robots and the way they interact with humans. This descriptive language helps to convey the writer’s perspective on advances in robotics and also sets up the topic of the passage, which is how humans and robots interact. Therefore, the writer should keep the underlined text.
Question:
World Systems Theory divides the countries of the world into 3 catogories BECAUSE
Answer:
So the world can be great
Answer:
The Thirteenth Amendment to the United States Constitution abolished slavery and involuntary servitude, except as punishment for a crime. It was passed by the Senate on April 8, 1864, by the House on January 31, 1865, and adopted by the States on December 6, 1865.
Explanation:
Hope This Helps
(0,-10) is the y-intercept
