List the similarities and differences of chittagong and Hongkong

Characteristics of substance farming include all of the following except

How do the various countries in east asia meet their power needs? give specific examples

Geologists know that potassium-40 decays to argon-40, with a half-life of 1.3 billion years. if an analysis of a feldspar crystal in a sample of granite shows that 75 percent of the potassium-40 atoms have decayed to form argon-40, what is the age of the granite