Answer: The right answer is Cave-ins.
Explanation: Excavations and trenches are basically the man-made cuts inside the Earth's surface. These are made for multiple purposes such as mining or tunneling. One of the obvious risk while working in such excavations and trenches is cave-ins. It is basically collapse of that excavation or Trench. The roof of the mine collapses and people working under it get buried inside those excavations in trenches.
B. I believe if not B. that it has to be D.
Answer:
The correct answer would be - alternate high quality chest compression by two rescuers.
Explanation:
In the case of the cardiac arrest one should call for the help in order to activate emergency response if the condition is safe, followed by the the chest compression or CPR to the patient immediately. As soon as the rescuers come to the help they should perform a high quality CPR or chest compression in a alternate manner for the patient who is suffering from the cardiac arrest so it can begins to pumping the heart.
Thus, the correct answer is - alternative high quality chest compression by two rescuers.
Answer:
Reticular activating system
Explanation:
The reticular formation refers to the network of neurons formed through the neurons of the brainstem and medulla.
The reticular system is not an anatomical structure but is present in the brainstem of the brain. The reticular formation on the upper side form the reticular activating system and on the lower side has the nerve fibres of the spinal cord.
The reticular system controls the consciousness ad arousals like mood and sleep.
In the given question, the sleep of the professor, therefore, could be due to the slow firing in the reticular formation.
Thus, Reticular activating system is the correct answer.
Reticular formation- brain stem structure associated with sleep, arousal, attention
Political science is the scientific study of politics. It is a social science dealing with systems of governance and power, and the analysis of political activities, political thought, political behavior, and associated constitutions and laws. so I'm pretty sure it's B
