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Nata [24]
3 years ago
7

What is the hardest element on earth

Biology
2 answers:
frutty [35]3 years ago
6 0
The hardest element on earth is diamond
Natasha2012 [34]3 years ago
4 0
The strongest material on earth is actually man-made, that material is known as Carbyne.
Carbyne is so strong it beat the previous champion of Graphene
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What are the main categories of primates? Which primates are the most ancestral?
kotykmax [81]
Primates have traditionally been divided into two major groups, called prosimians and anthropoids (or simians). Prosimians include lemurs, lorises, and tarsiers. Anthropoids include monkeys, apes, and humans.
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3 years ago
Monosaccharides can be classified based on the number of carbons they contain and the type of group attached to the molecule. Se
jok3333 [9.3K]
<h2>Monosaccharides</h2>

Explanation:

Monosaccharides are the simplest form of sugars found in innumerable common food items such as honey, cane sugar, fruits

Monosaccharides are divided into two groups depending on the presence of functional groups,if aldehyde group is present then it is known aldoses and if ketone group is present then it is known as ketoses

On the basis of carbon atoms they can be classified as: triose(3),tetrose(4),pentose(5),hexose(6) and so on

a. erythrose : tetrose ketose-It is not correctly paired because erythrose is a tetrose monosaccharide which has one aldehyde group hence is an aldose

b. dihydroxyacetone : triose ketose-It is correctly paired;it is an aldose-ketose pair

c. erythrulose : tetrose aldose-It is not correctly paired because erythrulose is a tetrose monosaccharide having ketone as functional group hence is a ketose

d. fructose : hexose ketose-it is correctly paired;It is an anomer because in D-fructose carbonyl group is at C-2 hence C-2 is the anomeric carbon

e. ribose : hexose aldose-it is not correctly paired because ribose is an aldo pentose not hexose;ribose is an aldo-ketose pair

f. glyceraldehyde : triose aldose-it is correctly paired;an aldo group

8 0
2 years ago
How many palindromic years will there be in the twenty_first century?​
natita [175]

Answer:

Alot of them.

Explanation:

3 0
2 years ago
Read 2 more answers
Which of the following is the best example of one
swat32

Answer:

D.

Explanation:

Plants take in CO2 and turn into Carbo.

That's the most efficient example

8 0
3 years ago
What was the main reason for creating the EPA?
daser333 [38]

The correct answer is A.

Explanation:

EPA History. Born in the wake of elevated concern about environmental pollution, EPA was established on December 2, 1970 to consolidate in one agency a variety of federal research, monitoring, standard-setting and enforcement activities to ensure environmental protection.

I took this quiz and got it correct

4 0
3 years ago
Read 2 more answers
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