Is it generally true that igneous rocks are formed by the crystallization of molten magma?

Can duckweed grow in low light? Is butter softening a physical or chemical change? Are night-blooming cereus plants poisonous? What colour is a ciliated epithalial cell? Which compound in the table requires the highest temperature to make it decompose? What med will crystallized mix with D4NS? What do plant leaf cells produce for the plant? What new science did Gregor Mendel establish and how? What does semitic blood mean? What type of protein the saliva represents? Why did Mendel wanted to find out if the color of the seed of a pea plant affected the seed shape What experiment did he perform to test this idea? What is extracted from cassiterite? What types do not disslove easily in water? What body organs excrete undigested foods? What is the hourly rate of being a childcare assistant? Is it okay to put meat in compost? What gases are in a airasoles? Where is the low air buzzer on a 1999 Kenworth W900? What are the different organs in the digestive system and their functions? What type rocks are found in Belize?