Answer:
A heart attack occurs when the flow of blood that carries oxygen to the heart is blocked. The myocardium is deprived of oxygen and begins to die.
A person who has a heart attack may have some of these symptoms, or all of them:
Uncomfortable pressure, inflammation or oppressive pain in the center of the chest
Discomfort or pain that spreads beyond the chest to the shoulders, back, neck, jaw, teeth, one or both arms, and sometimes the upper abdomen
Shortness of breath
Stun, dizziness and fainting
Sweating
Sickness
Usually, a heart attack causes chest pain for more than 15 minutes, but it also may not show any symptoms. It is important to know that other symptoms may occur in addition to chest pain, such as indigestion or persistent pain in the neck or jaw.
Many people who have a heart attack have warning signs in advance of hours, days or weeks.
<em>1. sólido, líquido, gas, plasma</em>
<em>2. volumen, solubilidad, presión de vapor, color o conductividad eléctrica.</em>
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<em>cómo ha sido su día? :)</em>
The location and types of volcanoes are related to plate tectonics as well, so in that sense volcanoes also help us to understand about the tectonic history of a region because if there are volcanoes someplace even if they're not currently active we know that that must have been some sort of a plate uwu
Answer:
The correct answer is: B. The amount of air in a room never changes.
Explanation:
- A system is said to be in equilibrium when the net components in the system remains constant (no increase or decrease) with time.
- The air in a room never remains constant and always undergoes dynamic movement into and out of the room. At equilibrium, the net air in the room remains constant as amount of air exiting the room is balanced by the amount of air entering it.
- Evaporation of water in the form of water vapour from a cup into the atmosphere is not in a state of equilibrium as the amount of water evaporating from the cup is not replaced in the cup so there is a net decrease in water level in the cup.
- The decrease in nitrogen percentage in a room is not in equilibrium as the nitrogen concentration of the room is not constant.
- A blade of grass growing taller is not in equilibrium as a constant height of the grasses is not maintained.
Answer:
Heartbeat, circulation, breathing, and brain functioning stop.
Explanation:
Clinical death is the medical term used for the <em>cessation of cardiac function (heartbeat and therefore circulation) and breathing.</em> <em>It can be reversible with resuscitation,</em> but it has limits, one of these is relative to the brain, more than 3 minutes of clinical death can damage it irreversibly <em>causing brain death as well.</em>
Considering this information we can conclude that the correct answer is "heartbeat, circulation, breathing, and brain functioning stop"
I hope you find this information useful and interesting! Good luck!
