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
densk [106]
3 years ago
9

Why is coal brittle and diamonds hard when both are forms of elemental carbon

Biology
1 answer:
stira [4]3 years ago
3 0
Just realize that diamonds are the hardest substance and the only thing that can scratch a diamond is another diamond now that be got that out of the way they both have those chemicals in them 
You might be interested in
1. Scientists believe that ancient ancestors of all animals were (1 point) A) single-celled prokaryotes that reproduced asexuall
Bess [88]
Scientists believe that ancient ancestors of all animals were single celled eukaryotes that sometimes grew in colonies. The correct option among all the options that are given in the question is the second option or option "B".

The Cambrian Explosion resulted in the evolution of the first representatives of most animal phyla. The correct option among all the options that are given in the question is option "B".
4 0
3 years ago
Read 2 more answers
Which part of the immune system is produced in the bone marrow and circulates through the blood to destroy germs?
Masja [62]
The answer is white blood cells
3 0
3 years ago
Read 2 more answers
Look at the structures in the picture below.
Leni [432]
D. To see the outside world
4 0
4 years ago
Read 2 more answers
Lupita has a houseplant. Which method would be the best way of producing a similar plant for a friend
Reptile [31]
Since plants can asexually reproduce you can take a branch from it and plant it (or you can get some seeds from the plant like a normal person would)

(hope this helps :3)
5 0
3 years ago
One gets it right they got brainliest
Dahasolnce [82]

by def'n, superposition means as old rock settles, younger rock will form on top of it. so in a rock formation, the oldest rock is the one at the bottom.

ans is superposition.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Hiv can be transmitted from mother to fetus, and approximately 1/3 of infected infants will die within a few years of birth. the
    12·1 answer
  • If plants disappeared how long would oxygen last
    13·1 answer
  • Cell membrane function
    9·1 answer
  • During the timeline of a star. what comes after protostar?
    13·2 answers
  • Which example best illustrates a condition for natural selection to occur
    7·1 answer
  • What is meant by the following statement? The cell membrane is said to be fluid.
    15·2 answers
  • Can anyone know this
    7·2 answers
  • What happens to a population when a resource that is a limiting factor in the environment suddenly becomes scarce(very little/ha
    11·1 answer
  • Match each item.
    10·1 answer
  • PLEASE HELP ME ASAP <br> look at the picture below
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!