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attashe74 [19]
3 years ago
6

How can the freezing of surface waters make the water that is left unfrozen denser

Biology
2 answers:
yKpoI14uk [10]3 years ago
7 0

Explanation:

When an aqueous solution freezes, the unfrozen solution becomes denser. That's because some of the water has been removed as ice. However, the solutes remain dissolved in a solution with a smaller liquid volume. The concentration of the solution increases, so the density increases.

agasfer [191]3 years ago
3 0

this is because water expands as it gets cold hence floating leaving the unfrozen water dense

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rosijanka [135]
<h2><em><u>Answer:</u></em></h2>

The five steps that are always taken in scientific research are;

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  • establishing a hypothesis
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<h2><em><u>Explanation:</u></em></h2>
  • Arya already performs the first two steps; as she first recognize the problem i.e. she observes the dry glass and she also formulate a hypothesis that "the water content in the soil is about two-thirds lower than that of other yards in the area"

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2 years ago
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A gardener uses a chemical to kill the bacteria in the soil of his flowerbed. how will this plan affect the growth of his flower
Dafna11 [192]

The flowers will not grow as well because bacteria are needed to fix nitrogen

Numerous plants have symbiotic interactions with bacteria, which provide them with essential nutrients like nitrates. His flowers' growth will be limited and they can even perish if all the bacteria are gone.

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Friendly bacteria or good bacteria can help plants grow by helping the plants to obtain nutrients such as phosphorous and nitrogen, or by defending the plants from other microbes that can make them sick.

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maxonik [38]

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oksano4ka [1.4K]

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The metaphase is the second phase of mitosis and meiosis that occurs after prophase where the envelope is lost and microtubules of the achromatic spindle (also called meiotic or mitotic) appear.

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