The hemoglobin test is often used to check for anemia, usually along with a hematocrit or as part of a complete blood count (CBC) . The test may be used to screen for, diagnose, or monitor a number of conditions and diseases that affect red blood cells (RBCs) and/or the amount of hemoglobin in blood.he hemoglobin test is often used to check for anemia, usually along with a hematocrit or as part of a complete blood count (CBC) . The test may be used to screen for, diagnose, or monitor a number of conditions and diseases that affect red blood cells (RBCs) and/or the amount of hemoglobin in blood.
Volcanoes form at hot spots in the Earth's crust, at convergent plate boundaries where subduction of oceanic crust is occurring, and at divergent plate boundaries where gaps i â¦ n the crust are being infilled with rising magma.
Volcanoes result when magma rises to the Earth's surface. One process that results in magma being formed, is the melting of tectonic plates being subducted. Therefore, most volcanoes are likely to occur along convergent or divergent tectonic plate boundaries.Diagram of the Pacific Rim of Fire.andforms seen in the area of covergent plate boundaries include mountains and/or volcanoes. Volcanoes may form because the subducting plate is melted to form magma, which rises and is then released in a volcano.