What is Fi angen at bod hychwaneg i mewn chyffwrdd ag 'm Cymraeg cefndir in English?

Is obsidian chemichal or organic? What do geographers use to determine absolute location? How much protein is in an apple? Divison of an orange? Are all elements with one valence electron highly combustible? Can distilled water be used to make coffee? Why Zinc oxide white when heat it change to yellow? Why does an updraft within a thundercloud tend to rise higher if the air has a higher moisture content? What beliefs about earth and the heavens were proved by the discoveries of Aristarchus and Eratasthenes? Where to find crystals in dorset? How do you measure height for NHL player? Is the skin between your thumb and your pointer finger called the flagina? Can cold water make you go into labor faster? What are facts about sickle-cell? Will all types of heat transfer takes place in boiler furnace? List four substance that increase urine production? What is the volume of water vapor? How many cells does a blastocyst have about day 5? How many meters is 8 ft 6 inches? Where do plant cells contain DNA?

What is Fi angen at bod hychwaneg i mewn chyffwrdd ag 'm Cymraeg cefndir in English?