A spasm is a sudden, involuntary contraction of a muscle, a group of muscles, or a hollow organ such as a heart, or a similarly sudden contraction of an orifice.It most commonly refers to a muscle cramp which is often accompanied by a sudden burst of pain, but is usually harmless and ceases after a few minutes. spasm is a sudden, involuntary contraction of a muscle, a group of muscles, or a hollow organ such as a heart, or a similarly sudden contraction of an orifice.
Top 10 largest Cement Producing Countries in the World. China has the first stage in the list of cement producing countries. They produce more than 2482 million tonnes. It is mainly used for construction and china is highly populated.
And fossil fuel production is a largely non-European affair-only Norway appears in the top 15. In fact, the United Kingdom is the next ranked European country at number 26. The top 15 countries extract 78% of the world's fossil fuels, and only four of the top 15 are developed countries.Because of its vast natural gas production, Qatar has the world's largest per-capita fossil fuel production. In total, Qatar's per-capita fossil fuel production is just under 120 toe.he world's top 15 countries produce 78% of the world's natural gas, a similar percentage to that seen with oil. Qatar is the world's fourth biggest producer of natural gas, yet its population is only 2 million. A country with 0.03% of the world's population therefore produces 5.4% of the world's natural gas.