Yazar: Sandra M. Hoffman

Sandy Hoffman practices as a counseling psychologist in Cape Town. Due to anti-apartheid activism she spent three months as an inmate in prison in 1986. During her internship as a psychologist, …

Bentonite are usually found in deep geographical areas. They are produced from rock, fossils, weathering of volcanic ash and disposal of high-level of radioactive waste in many countries. Bentonite …