I think that the question is not clear enough. Can you be more specific?
If your question was something like this: how many atoms of hydrogen can be around carbon, then the answer is 4. Carbon forms 4 bonds with other atoms.
Please note that carbon need not always form bonds to four atoms. A carbon could form a double bond with an oxygen and then two single bonds to hydrogen atoms. The carbon is only bonded to three atoms, but is forming a total of four bonds (1 double and 2 singles).
Answer:
Chemicals that are secreted from antigen-presenting cells then activate helper T cells.
Explanation:
Answer: The superior saggital sinus is located in the falx cerebri.
Explanation:
The superior sagittal sinus also called superior longitudinal Linus is found in the human head, it is an unpaired area located in the falx cerebri. It drain blood from the lateral region of anterior cerebral hemispheres to the confluence of the sinuses.
Answer:
The correct answer is 0.53 meters.
Explanation:
The given density of water is 1025 kg/m^3
Gauge pressure, that is, (P2 - P2) = Po/19
Here Po = 1.013 * 10^5 Pa
= 1.0.13 * 10^5 Pa / 19 = 5331.58 Pa
The change in pressure associated with the depth is given by the formula:
P2 -P1 = ρgh
h = P2 - P1 / ρg
h = 5331.58 Pa / 1025 kg/m^3 * 9.8 m/s^2
h = 0.53 m
Thus, the driver can swim 0.53 meters below water.
