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VladimirAG [237]
3 years ago
10

Suppose while walking along the beach, you find a green crystal. Which properties could you use to determine whether the crystal

is an emerald? Explain your reasoning.
Biology
1 answer:
Drupady [299]3 years ago
3 0

Answer: color, cleavage, clarity, durability, and crystal system

Explanation: color - distinctly green color that ranges between bluish green and slightly yellowish green.

cleavage - one direction of imperfect cleavage

clarity - almost every natural emerald has eye-visible characteristics that can be inclusions, surface-reaching fractures, or healed fractures. Treatments to fill the fractures with oils, waxes, polymers, flux and other materials to reduce their visibility has been common practice for hundreds of years.

durability - emerald is very hard, but almost all specimens have inclusions and surface-reaching fractures that compromise their durability

crystal system - hexagonal

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DIA [1.3K]

Answer:

Heartbeat, circulation, breathing, and brain functioning stop.

Explanation:

Clinical death is the medical term used for the <em>cessation of cardiac function (heartbeat and  therefore circulation) and breathing.</em> <em>It can be reversible with resuscitation,</em> but it has limits, one of these is relative to the brain, more than 3 minutes of clinical death can damage it irreversibly <em>causing brain death as well.</em>

Considering this information we can conclude that the correct answer is "heartbeat, circulation, breathing, and brain functioning stop"

I hope you find this information useful and interesting! Good luck!

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