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
LekaFEV [45]
3 years ago
11

A human fingernail has a hardness of approximately 2.5. Which mineral is softer than a finger nail. A. calcite B. gypsum C. apat

ite D. diamond
Biology
2 answers:
Fofino [41]3 years ago
4 0
That answer would be, B. gypsum




-Nana
denis23 [38]3 years ago
3 0
According to the 2011 Earth Science Reference Table, Selenite Gypsum has an approximate hardness of 2.

The hardness of calcite is 3.

The hardness of apatite is 5 according to the Moh's hardness scale.

The hardness of diamond is 10.
You might be interested in
Which amino acid chain will be formed by the codons shown below GGU AGC CGG
Oksi-84 [34.3K]

The answer is Gly-Ser-Arg

4 0
3 years ago
5.
inessss [21]
As the flower takes water that it needs to survive, the dye in it has no more density so it goes up with the water dying everything in its path blue.
3 0
3 years ago
Can someone please explain to me what the “-“ in this chart means. Thank you
Alexxandr [17]

if you are talking about both then the first when measures the meters in a high tide and a low tide and the bottom one shows how it has been increasingly rising and lowering

6 0
3 years ago
What initiates an action potential on a muscle cell?
Afina-wow [57]
A change in membrane potential
8 0
3 years ago
What is the difference between a detritivore and a decomposer?
Mumz [18]

Answer:

C

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • What phrase BEST describes a community?
    6·2 answers
  • 5. If there is a large number of prey rodents, the number of owls will increase due to a healthy
    13·1 answer
  • One of the needs of today's taxonomy is:
    7·2 answers
  • What are some science skills you could use to study fish in an aquarium
    14·1 answer
  • Plants are the basis of nearly all ecosystems on Earth because they carry out the process of photosynthesis. Plants harvest ligh
    8·1 answer
  • what does cell membrane,meiosis sickle cell anaemia base change and inheritance pattern,DNA,enzymes and aerobic resporation have
    5·1 answer
  • Formas de disminuir la agresividad en gallos reproductores
    6·1 answer
  • In photosynthesis, solar energy is converted into a usable chemical energy form. The energy containing product of photosynthesis
    9·1 answer
  • How biomass converted into energy?
    6·1 answer
  • List and explain the function of four organelles found in eukaryotic cells.<br> HELP NOW !
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!