The answer is Black lung disease
Answer:
a. It can be used for photosynthesis.
Explanation:
Since carbon dioxide is needed in the photosynthesis process, then much of the carbon dioxide which is produced by green plants is not always excreted in form of metabolic waste because it can be easily used in the photosynthesis process.
Answer:
The correct answer is - option C.
Explanation:
Foreign body airway obstruction is the condition when there is a blockage in the airway of an individual due to engulfing food, or foreign item. Swallowing marbles or coins are a common case f foreign airway obstruction.
Back blows and the chest thrusts or abdominal thrust is effective and for relieving airway obstruction in children that are more than one year. It is also effective in adults. If this maneuver is not working one should use CPR and chest compression and call for the ambulance.
Thus, the correct answer is - option C.
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