What is the positive connotation for unyielding and firm?

How does the scale to measure a thyroid work? What are mechanisms that drive or enhance change are called what in geology? What are the three forms of water in the water cycle? Does atomic mass means the number of protons plus neutrons? How many millimeters are in 7.5 inches x 96.5 inches? What bad things are happening to the grasslands? What are differences between Prokaryotes and Eukaryotes in what Eukaryotes have versus what Prokaryotes do not have? The haber process is typically carried out at a temperature of 500 Celsius so what would happen if 100 Celsius? What kind of noun is grace? 1TDS is equal to how many ppm? What conditions are associated with Turner syndrome? How do you classify a weak acid? What is a mixture that forms when one substance dissolves another is called what? What is sperms made out of? How can island organisms evolve differently from those on the mainland? Who made the first metal weapon? Is carbonated drinks a solution or suspension? In the last ten years we have made more plastic than in the? What marks where a leaf ends it grows between the petiole and the stem of a plant? What name is given to the fungus which can grow so large it covers several hectares?