If we guide ourselves with the Moh´s scale:
Material scratches apatite → material is harder than 5.
Material is scratched by corundum → material is softer than 9.
Conclusion:
The hardness of the unknown material stands between 5 and 9.
Note:
Both apatite and corundum are defining materials (reference materials in the Moh´s scale). So, you can also give an answer using defining materials:
"It can either be an orthoclase feldspar, a quartz or a topaz".
Hope it helped,
BiologiaMagister
<u><em>This answer is dedicated to JaySL</em></u>
Answer:
the have same DNA but different sperm and eggs form them
Answer:
can i see the whole question or is that it?
Explanation:
if im wrong im so sorry but .....
I'm going to answer the first 3 in one comment and the next in the next comment 1)AUU GAU ACU GCA GC. 2) lle. asp. thr. ala. 3) CGA.?
Answer:
✔ Xylem ** is the correct answer
Explanation:
Xylem is the water transporting tissue in plants
When animals are fighting over resources the number of one animal might decrease because the other animal would've tried to kill it and stay alive
when there is competition the population size of one animal might decrease while another increases<span />
