Answer:
From mud and clay to diamonds and coal, Earth’s crust is composed of igneous, metamorphic, and sedimentary rocks. The most abundant rocks in the crust are igneous, which are formed by the cooling of magma. Earth’s crust is rich in igneous rock s such as granite and basalt. Metamorphic rock s have undergone drastic changes due to heat and pressure.
<span>Cardiopulmonary resuscitation is a first aid technique for individuals in cardiac arrest that involves rescue breathing and a defibrillator. The aim of this technique is to ensure the brain remains operational and keeps blood pumping around the body, until further medical help can arrive.</span>
Excretion is the missing word
It requires good communication.
Class A- Water, Foam, Dry Powder, and CO2 Extinguishers.
Class B- Foam, Dry Powder, and CO2 Extinguishers.
Class C- Dry Powder, or CO2 Extinguishers.
Class D- Dry Powder or CO2 Extinguishers.
Class K- CO2 Extinguishers.
-There are also special powders for Class D metal fires.
-CO2 extinguishers have no "Post Fire Security" and the fire could re-ignite.
