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Almost everywhere: e.g. water is made of oxygen and hydrogen; all hydrocarbons (petrol, oil, plastics) contain hydrogen; thus the name. If you mean free hydrogen, then it is in v. smal quantities in the atmosphere, but as its volatile the quantities would be miniscule, if there at all, or in cylinders filled by a hydrogen filling plant.
No cytoskeleton is made up of proteins.It does not contain DNA.
Yes. While they are mostly made of rock or metal, they may contain some ice.
All living sources contain the element Carbon
Pewter is a relatively soft, malleable metal that is largely made of tin. It does contain other metals, such as silver, copper, or lead, but it does not contain aluminum.
It is simply a set of values with the operations defined on the set. If the results of the operation satisfy certain requirements, then the set may be a Group, a Ring or a Field (or other algebraic structure).
It is normally made with cow's milk nowadays so will have minute quantities of fat.
Derived quantities are quantities which are made or found from other major quantities. There are two types of quantities. Ones are which are recognized throughout the world and using them other quantities are made.
Most stars are made of gases, primarily hydrogen and helium, though many stars also contain small quantities of heavier elements.
A free market is one in which decisions about what to produce and in what quantities are made by:
Expression is the mathematical phrase made up of numbers and operations
Almost everywhere: e.g. water is made of oxygen and hydrogen; all hydrocarbons (petrol, oil, plastics) contain hydrogen; thus the name. If you mean free hydrogen, then it is in v. smal quantities in the atmosphere, but as its volatile the quantities would be miniscule, if there at all, or in cylinders filled by a hydrogen filling plant.
Yes. Hershey kisses are made with milk chocolate.
Seafood in general isn't especially rich in calcium, though some canned fish - salmon and sardines for instance - contain bones which are edible and so are a very good source of calcium. Stocks which are made from the shells and bones of sea creatures contain significant quantities of calcium, so that health benefit is passed on to sauces, soups and stews made from seafood stocks. Seafood does contain vitamin D, which is necessary to help the body absorb calcium.
Ice and dirt, of varying quantities.
no
Because doughnuts contain large quantities of fat in them. fat soaks through most materials so the bags are made of plastics, so the fat and grease doesn't soak through