Awoman is pregnant and has asthma. her primary care provider has told her to continue taking prednisone during pregnancy, but she is concerned the drug may be teratogenic. what advice would be best to give her regarding this?

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.

Carbon monoxide is the answer: )