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Mnenie [13.5K]
4 years ago
10

Describe how you could use properties to determine whether or not a sample of a substance is pure.

Biology
2 answers:
chubhunter [2.5K]4 years ago
8 0

Answer:

A pure solid has a constant/fixed melting point. A pure liquid has a constant/fixed boiling point. A pure gas may be made up of individual atoms

ozzi4 years ago
6 0

Answer:

It depends the substance

Explanation:

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galina1969 [7]

Answer:

The incorrect conclusion is D that is finding burial sites of <em>Homo habilis </em>on different countries.

Explanation:

<em>Homo habilis</em> are called as stone age human that are appeared  between 2.1 and 1.5 million years ago and they use tools that are made up of stone which they use to kill the animals. They are called as scavengers and they didn't have any knowledge about bury the dead bodies.

<em>Homo neanderthalensis</em> are the extinct species of human that appears at about 40,000 years ago who bury the dead body but they became extinct due to competition and they did't able to adopt the modern techniques.This was the prime factor that they became extinct.

3 0
3 years ago
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How were the iron beds in the oceans formed? im giving 100 points here are your anwser
Ipatiy [6.2K]

Answer:

Its number 4 , After billions of years, cyanobacteria turns into iron; the iron beds are remnants from cyanobacteria. its 7th grade science.

Explanation:

3 0
3 years ago
Sandra Bem coined the term _____ to describe those people who possess both masculine, or instrumental, and feminine, or expressi
son4ous [18]

Answer:

Hello!

The answer is androgyny.

Explanation:

  • Sandra Bem was a psychologist who studied gender and gender roles.
  • She is famously known for introducing the Gender Schema Theory and the Bem Sex-Role Inventory or BSRI which is a test that classifies individuals on the basis of male and female traits.
  • Bem's work has helped to redefine gender roles in society.
  • Bem stated that each individual has both masculine and feminine traits and their gender roles could be determined on the basis of score on the BSRI.
  • She introduced the androgyny to define people who have an equal number of both masculine and feminine traits on the BSRI.
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How do desert plants conserve the water available in their body?
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