Answer:
Volcanoes often form along tectonic plate boundaries where oceanic plates sink beneath other plates. As a plate sinks deep into a subduction zone, it will start to heat and melt, forming something called magma. Volcanoes can also be created near tectonic boundaries where plates pull apart. This allows magma to rise up from the mantle.
Explanation:
^
The following are indications that will suggest that there
is a presence of airway obstruction;
<span>·
</span>Low ph
<span>·
</span>Increased PCO2
<span>·
</span>Decrease PO2
It is because when a child does not have the capability of evacuating
the accumulated CO2 due to ab obstruction, there will likely be a result of the
PCO2 to rise in the arterial blood as well as its carbonic acid concentration.
In the same time, there will be a presence of low ph because of acidosis that
occurs because of the low PCO2 and concentration of carbonic acid being too
low. That will likely lead of the PO2 to decrease.
Answer:
because of factories and cars and smoking
Explanation: