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Wittaler [7]
3 years ago
8

Which coal is on the bottom layer ?​

Biology
2 answers:
klio [65]3 years ago
8 0

Answer:

these are the layers of coal

Explanation:

Coal is a sedimentary rock. This means it was deposited on the surface in a layer through a natural process. Layers of coal are called seams; layers of rock, strata. Coal seams and other layers of rock in an open-cast mine.

katen-ka-za [31]3 years ago
6 0

Answer:

Anthracite is the coal situated at the bottom layer.

Explanation:

Anthracite is the best quality of coal as it is found deep inside the earth's surface and due to high pressure and temperature inside earth's surface it is more qualitative.

AND remember peat is the poorest quality of soil. Some people say lignite is the poorest quality of coal this answer is also correct.

I HOPE IT WILL HELP YOU

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An ecosystem is like a machine that cycles matter by using: captured energy.

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3 years ago
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After ovulation, the corpus luteum releases _____ to prepare the endometrium for implantation.
ivolga24 [154]

After ovulation, the corpus luteum releases progesterone and estrogen to prepare the endometrium for implantation.

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Sperm can live inside the female reproductive tract as long as five days after sexual intercourse under the right conditions.

Your chance of getting pregnant is highest when live sperm are present in the fallopian tubes during ovulation.

In an average 28-day menstrual cycle, ovulation typically occurs about 14 days before the start of the next menstrual period.

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5 0
2 years ago
If you were working for a pharmaceutical company as part of a drug discovery team, which of these enzyme inhibitors would you su
mart [117]

Answer:

Option A, a drug to treat high blood pressure that reversibly inhibits an enzyme catalyzing production of a chemical that causes blood vessels to contract

Explanation:

The complete question is

If you were working for a pharmaceutical company as part of a drug discovery team, which of these enzyme inhibitors would you suggest as a productive avenue for drug development?

a) a drug to treat high blood pressure that reversibly inhibits an enzyme catalyzing production of a chemical that causes blood vessels to contract

b) a drug to treat diabetes that irreversibly inhibits an enzyme in the metabolic pathway to synthesize glucose

c) a compound that acts as a competitive inhibitor for a digestive enzyme produced only in the presence of certain foods

d) a compound that inhibits enzymes by significantly changing the ph throughout the body

Solution

Productive avenue of a drug simply means producing an drug that not only treats the main disease or disorder but also functions to inhibit the causative agent activity. In case of option A, both the objectives of producing drug are met and hence it is the right choice.

High blood pressure usually affects the blood vessels by narrowing them and in severe cases may rupture them. If a drug as stated in option A is produced, it will not only rectify the effects of high blood pressure but will also prevent the blood vessels from narrowing by inhibiting the activity of enzymes responsible for producing chemical that leads to blood vessel contraction.

Hence, option A is correct

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