The fur that a bird uses in its nest is …

Biology

1 answer:

Masteriza [31]2 years ago

5 0

Abiotic hope it helps !

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A geologist discovers a sample of fine-grained rock made up of very small crystals. Based on its physical appearance, what can t

tensa zangetsu [6.8K]

Answer:

D. It formed from magma that cooled quickly

Explanation:

From several experiments, geologists have come to terms with the fact that when magma cools rapidly, it does not give room for large and big sized crystals to form. Instead, tiny, little crystals would be formed.

For example, obsidian and most volcanic rocks.

When a magma has enough time to cool and solidify, we see very big crystals of minerals in them.

3 0

2 years ago

In an ionic compound, the attraction between actions and _________ hold the compound together

Nady [450]

Answer:
The correct option in blank is anion.

Explanation:
Ionic compound is formed by the transfer of electron from one atom to another atom. When an electropositve atom lose an electron it form cation, whereas as anion is formed when an atom gain an electron. These actions and anions then attract each other and form an ionic compound.
I hope it will help you.

Example:
The formation of NaCl is best example of ionic compound. Na has one electron in its outer most shell which can easily be removed to form Na+, while Cl has seven electron in its outer most shell so it can easily gain an electron lost by Na to form Cl-. Then these ions attract each other and form NaCl as shown in the figure.