The answers are letters B and D. They are not soluble in water and the hydrogen-oxygen ratio is different. Good luck!
Acute exposure to high altitude can affect the cardiovascular system by decreasing oxygen in the blood (acute hypoxia). It also increases demand on the heart, adrenaline release and pulmonary artery pressures.
I hope this helped:))
Explanation:
Peer pressure:the National Institute of drug abuse reports that peers have a large influence on drug abuse in behaviours
Causes stress? Where are the choices
My guess is...
Less sleep
Bad energy around your environment
