C the interior portion of leaves. Guard cells control the opening and closing of the stoma
The answer will be most likely C
The liquid needed for oxygen humidifier would be sterile water.
When administering a high dose of oxygen(>6lpm) it is important to use a humidifier so the air that enters the lungs is humid enough so it won't dry the airway. Sterile water is best because there is a chance that bacteria from water will enter the airway. Impurities in water are not harmful to the body but it might damage the machine, so distilled water would be best.
Climate is the long-term average weather conditions that occur in a particular region. Climate depends on how average weather conditions change throughout the year.
<span>Above human figure, beyond are approximately 5 million of hair follicles. Men have approximately a rare 100,000 larger than ladies. Something varies greatly exceedingly, the characteristices of the female hair and the men are heavy, lengthy hair and so forth.</span>