Seudónimo
Seudónimo
20-12-2013
Biology
contestada
Why aren't all minerals gemstones?
Respuesta :
supervishnu04
supervishnu04
07-01-2014
Minerals are naturally occurring, inorganic, crystalline substances. Gemstones are usually made by humans, which means their synthetic and not naturally made. The gemstones that do come from nature are organic like amber, not inorganic.
Answer Link
VER TODAS LAS RESPUESTAS ( 57+ )
Otras preguntas
Analyze the key features of the graphs of the functions below. Select all of the quadratic functions that open down, have a vertex that is a maximum and a posit
Bradley decided to put a glass of water into the freezer, as he thought it would cool the water more quickly than the refrigerator. Bradley began to watch TV a
A soil sample is 85 percent sand, 5 percent clay, and 10 percent silt. Use the following soil texture triangle to determine the type of soil present in this sam
Explain what it mean to give the context of a quote
Analyze the key features of the graphs of the functions below. Select all of the quadratic functions that open down, have a vertex that is a maximum and a posit
Simplify: 1 3 (6ab - 9b) + 2 3 (9ab + 12b)
Don't Answer! When a president is elected do they have to take an oath to make it official?
The total amount of organic matter present in any trophic level is called A) bioassay. B) biodiversity. C) biomass. D) detritus.
Directed line segment has endpoints P(– 8, – 4) and Q(4, 12). Determine the point that partitions the directed line segment in a ratio of 3:1.
Burj l Arab Hotel,one of the world's tallest buildings,was finished in 1999.Located in Dubai,it is 1,053 feet high with 60 stories.If each floor is the same hei