Answer:
about 4.6 billion years old. Scientists measure its age by using radioactive decay of isotopes found in meteorites and rocks. The Potassium and Uranium isotopes were formed at the same time as the solar system. The inference is that the age of the rocks and meteorites, is the age of the solar system.
Answer: I ordered many things at the restaurant: a salad, chicken pesto, and tiramisu.
Explanation:
A colon is a punctuation mark that has two parallel dots and it is used when people are trying to tell the readers what they meant. In this case, the writer is telling us that he ordered many things in the restaurany, and after the colon : he wrote on what things he was thinking, those are chicken pesto, a salad, and tiramisu.
The colon is used to introduce the items to readers. That can be a series of items or something similar.
The walker dosen't think will deserve to be the sign seeker.
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Fast food is convenient because it is cheap and it’s prepared ahead of time and you don’t need to cook it. You just order and enjoy the meal especially if you don’t know how to cook. It saves time and energy.
