Fossil fuels emit carbon dioxide when burnt which is a major greenhouse gas and the primary source of pollution. This has contributed to global warming. They are a non-renewable resource, i.e., once used they cannot be replaced. Combustion of fossil fu...
The term "fossil fuels" has evolved from a cheeky moniker into a something of villain in the public consciousness. Formerly a benign enough name to the substances that perhaps single-handedly propelled global civilization into a truly modern age, many people now associate "fossil fuels" with poll...
You might think a cargo(货物) sailboat is something out of a history book, but in fact, they are actually the result of years of cutting-edge research and development. French company Grain de Sail claims to have created the first modern sailboat that meets the merchant fleet(商船队) ...
He also makes erhu — a traditional Chinese musical instrument — with wood, using fishing line as strings ___38___ snakeskin as covering. The man, who uses a cane due to a longtime ___39___ (disable), is portrayed as...
The bones of this ichthyosaur are a type I Fossil. These crinoids represent a type I fossil So now you have one short and one long answer to the question: "What is a Fossil?" Let's build on that. Type II- Something that was made by the animal while it was living that has hardened...
When the oil cools off, the stuff that is left is turned into a variety of products, like gasoline, diesel fuel for cars and trucks, asphalt for roads, um, paints, plastics, even soaps. And check what you’re wearing. If you are wearing something with synthetic fibers, what that really...
Yet, a critical question here remains, and that is… Why are bond yields still rising? The answer is neither simple nor obvious, which is why a thoughtful treatment of this issue is something required at this juncture. And to provide just such as treatment, I am going to show you what ...
It was the biggest advance since Mendel created the genetics paradigm; the Nobel Prize was a lock. The boss who had told Watson to work on something else (!) had to admit the younger biologist had good instincts. Watson wrote that to get his work done, he had to navigate a minefield...
a harmful concentration.It can be a natural air component,such as carbon dioxide,that rises above its normal concentration,or something not usually found in the air,such as a lead compound emitted by cars burning leaded gasoline.A secondary air pollutant is a harmful chemical formed in the ...
Fuel Fissionable material used in a nuclear reactor. Oil Information or facts Young had some good oil on the Adelaide races Fuel Nutritive material metabolized by a living organism; food. Oil Lubricate, coat, or impregnate with oil A lightly oiled baking tray Fuel Something that maintains or st...