jc95704816

04.07.2020 • 

Biology

Which sentences describe ponds and lakes? These are water bodies formed from melting glaciers. However, their size can vary from a few square meters to thousands of square kilo meters. These regions form where freshwater streams or rivers merge with the ocean. They can be seasonal, existing for a few months, or exist for hundreds of years or more. You can find algae, fishes, sea urchins, octopuses, and starfish in them.

Ответ:

dlo2457

27.05.2021

Biology

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Atoms are the smallest unit of matter that can't be broken down chemically. Molecules are groups of two or more atoms that are chemically bonded. Ions are atoms or molecules that have gained or lost one or more of their valence electrons and therefore have a net positive or negative charge.

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