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Harlamova29_29 [7]
3 years ago
15

You can use this article to help you! I will mark branlist!!

Chemistry
1 answer:
Nadusha1986 [10]3 years ago
6 0

Answer:

1. producers would be things like plants if those were removed we would have no oxygen and herbivores would have no food

2. an area of all of the living things

3. Food chains overlap. They connect to form a food web

4.   can threaten the plants and animals that originally made up the ecosystem

5. Human activities that can disturb ecosystems include polluting and clearing land for farms or buildings

6. producer, consumer and decomposer

7. Decomposers break down the waste products and dead tissue of plants and animals. They return nutrients to the soil.

Explanation:

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Answer:

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Explanation:

The group two contain alkaline earth metals.

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When they lose the two valance electrons they form cation X²⁺.

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The oxidation state of halogens are -1, while the elements of group two A shows +2 that's why two atoms of halogen are combine with one atom of alkaline earth metals and make the compound overall neutral.

All the alkaline earth metals have similar properties.

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