The correct answers from the choices are:
a. Reduce inflammation locally
b. Antagonize H1 receptors
c. May be administered orally
<span>d. Are systemically distributed
</span><span>Antihistamines are drugs that are H1 antagonists or blockers, may be administered orally, are distributed systemically, and do not directly reduce nasal congestion.</span>
15 miles MGCI..... I think
Answer:
The wavelength of sunlight is required to break the bond in one oxygen molecule is 242 nm.
Explanation:
Energy required to break the 1 mol oxygen-oxygen bond:
=495 kJ=495000J
1 mol =
molecules
Energy required to break 1 molecule of oxygen molecule= E
= 
The energy required to break the 1 molecule of oxygen is equal to enrgy of one photon of a sunlight.

where,
= wavelength of the light
E = energy of the photon
h = Planck's constant = 
c = speed of light = 


The wavelength of sunlight is required to break the bond in one oxygen molecule is 242 nm.
Answer:
o k
Explanation:
ok ok .......o k....ok aaaaaaa