Answer: The three main types, or classes, of rock are sedimentary, metamorphic, and igneous.
Explanation:
The differences among them have to do with how they are formed.
Answer:
The living conditions were unfair. People owning big industries saw an opportunity to work these immigrants day and night, though they only paid them less then what they deserve (but they didn't know that because they are new to America). Immigrants often didn't have enough money to provide for their families, so many of them were split apart and some children had to work. Because most couldn't pay for housing, many immigrants from the same areas lived in groups so they could help support each other. It was a difficult time for many, and a lot of immigrant workers slept in the factories, for there was no else to go.
Answer:
because only plant have stomata
I hope this helps
gymnoseperms meaning "naked seeds" are a diverse group of seed plants and are paraphyletic. paraphyletic groups are those in which not all members are descendants of a single common ancestor. gymnoseperm seeds are not enclosed in an ovary; rather, they exposed in cones or modified leaves
Answer:
Water sample showing pink/purple color is an error.
Explanation:
Biuret is a blue color reagent that changes its color to pink/purple whenever it detects protein in a sample. Water don't contain proteins so it should not show pink/purple color instead it should maintain the blue color. Food items generally contain proteins so it show pink/purple color but it showed blue color.
Error might have caused by wrong marking of the samples, test tube marked with Water might contain a mystery food while Mystery food tube might contain water.
