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Lelechka [254]
3 years ago
11

Please help me I will give you the brain thing and extra points. image below

Biology
1 answer:
Sphinxa [80]3 years ago
8 0
The second on :” the number of valence electrons stays the same” because a valence electron is the number of electrons on the outer shell of the atom and if it’s in group one then the outer shell of any element will have one electron on its outer shell
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Which of these changes to a modern lifestyle would promote the development of more-sustainable practices in the world food syste
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Answer:

c. switching from beef to soy

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What does a mass extinction look like in the fossil record?​
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There is less diversity hope this helps
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2. Why do we need carbohydrates ?Name three sources of carbohydrate in our food ​
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Answer:

Carbohydrates are the body's main source of energy. In their absence, your body will use protein and fat for energy. It may also be hard to get enough fibre, which is important for long-term health.

Carbohydrates are found in a wide array of both healthy and unhealthy foods—bread, beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks, corn, and cherry pie etc.

Explanation:

brainliest pls

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