1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lana66690 [7]
3 years ago
9

17. According to the Mohs Hardness Scale, what's the approximate hardness of topaz?

Biology
1 answer:
MAVERICK [17]3 years ago
5 0

Answer: (A) the answer is 8

Explanation:topaz on the scale is no 8, followed by corundum no 9 and then diamond which is the hardest on no 10

You might be interested in
What domain does eukarya evolve?
Arte-miy333 [17]
My best answer would be E<span>ukaryotic</span>
5 0
3 years ago
When the brain is unoccupied, an fmri indicates that blood continues to flow via a web of brain regions called the?
bulgar [2K]

Default network


When the brain is unoccupied, an fMRI indicates that blood continues to flow via a web of brain regions called the default network.

The default network is a web of brain regions that have activity that corresponds greatly with each other and different from other networks within the brain. The default network is active when an individual's attention is not concentrated on the external environment and it is measured with the functional magnetic resonance imaging technique (fMRI).



7 0
3 years ago
Everyone's skin contains about the same number of melanocytes even though people come in many different colors. How is this poss
Hatshy [7]
This is because the melanocytes are located in the stratum basale. Lighter-skinned people usually have low basal levels, and exposure to UV radiation causes an increase which makes skin darker.
6 0
3 years ago
Why would a shark need to regulate its internal salt concentration?
expeople1 [14]
Osmosis. If the cell has too much salt the cells will swell. let me know if you want me to explain.
7 0
3 years ago
High mass stars include what ?
Blizzard [7]

Answer:

High mass stars have very high-core temperatures, crushing stellar-core pressures, and are very big and very bright.

Explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • A client has been diagnosed with an anterior pituitary tumor, and synthesis and release of follicle-stimulating hormone has beco
    10·1 answer
  • What are the reactants of water(it says there is two reactants just don’t know what they are
    10·1 answer
  • Ribosomes create, or synthesize, proteins through the use of DNA and RNA. Which of these is a step in protein synthesis?
    6·1 answer
  • How can plants contribute to chemical and mechanical weathering
    12·1 answer
  • Darwin was pilloried for his theory of evolution through natural selection. ("Pillory" is a big word from the 19th century; it w
    12·1 answer
  • Explain the relationship between insulin and glucagon?
    7·1 answer
  • Where is carbon stored in the largest amounts on earth
    7·1 answer
  • When platy materials have a parallel alignment a rock is ____ APEX
    5·2 answers
  • Three students test the effect of fertilizer on bean plant
    12·2 answers
  • When the body uses nonspecific immune defenses, how is the body defending itself?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!