Is nickel metamorphic sedimentary or igneous rock?

Is the Earth's crust made of magma or rock? In Chemistry what does the term 'Vynil' means? What states have coyotes? What things can be cleaned with a steam vac? What alkali-earth metals have an atomic mass greater than strontium? How does carbon enter the biotic part of the ecosystem namely plants from the atmosphere and how does it enter the soil? At noontime in the central US on a Sunny day a person's shadow lie's? The physiological term for eating is? How do you convert km into cm? How does the stomata closing help a plant? What kind of flowers grow in the meadow in twilight? What type of data do geologists use to locate and earthquakes epi center? The carbon to produce carbohydrates in the second stage of photosynthesis comes from? When starch was incubated with amylase at 0 degrees did you see any starch digestion? What type of volcano will have the quietest type of eruption? What is the affect of the frequency of water on the growth of seeds? What are the effects of salt on decomposition of human remains? Where are large numbers of mitochondria found in? Where are the semi-metal found on the periodic table? What are the minerals in pampas?