Rainforest

Rainforests are forests characterized by high rainfall, with annual rainfall between 250 and 450 centimetres (98 and 177 in). There are two types of rainforest: tropical rainforest and temperate rainforest. The monsoon trough, alternatively known as the intertropical convergence zone, plays a significant role in creating the climatic conditions necessary for the Earth's tropical rainforests.

Around 40% to 75% of all biotic species are indigenous to the rainforests. It has been estimated that there may be many millions of species of plants, insects and microorganisms still undiscovered in tropical rainforests. Tropical rainforests have been called the "jewels of the Earth" and the "world's largest pharmacy", because over one quarter of natural medicines have been discovered there. Rainforests are also responsible for 28% of the world's oxygen turnover, sometimes misnamed oxygen production, processing it through photosynthesis from carbon dioxide and consuming it through respiration.

Cốm

Cốm, or green rice, is a dish in Vietnamese cuisine. It is not dyed green, as can be done with pandan, but is immature rice kernels roasted over very low heat then pounded in a mortar and pestle until flattened. Cốm is seasonal dish associated with autumn. It can be eaten plain or with coconut. The taste is slightly sweet with a nutty flavor.

A traditional pastry, bánh cốm (green rice cake) is made using cốm with mung bean filling. Cốm is often offered to worship the ancestors in the Mid Autumn Festival. The green rice can also be used in sweet soup, chè cốm. Cốm is similar to flat green rice of the Khmer people.

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CM

CM or its variants may refer to:

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Guqin

The guqin (simplified/traditional: 古琴; pinyin: gǔqín; Wade–Giles ku-ch'in; pronounced [kùtɕʰǐn]; literally "ancient stringed instrument") is a plucked seven-string Chinese musical instrument of the zither family. It has been played since ancient times, and has traditionally been favoured by scholars and literati as an instrument of great subtlety and refinement, as highlighted by the quote "a gentleman does not part with his qin or se without good reason," as well as being associated with the ancient Chinese philosopher Confucius. It is sometimes referred to by the Chinese as "the father of Chinese music" or "the instrument of the sages". The guqin is not to be confused with the guzheng, another Chinese long zither also without frets, but with moveable bridges under each string.

Traditionally, the instrument was simply referred to as qin (Wade–Giles ch'in) but by the twentieth century the term had come to be applied to many other musical instruments as well: the yangqin hammered dulcimer, the huqin family of bowed string instruments, and the Western piano are examples of this usage. The prefix "gu-" (meaning "ancient") was later added for clarification. Thus, the instrument is called "guqin" today. It can also be called qixianqin (lit. "seven-stringed instrument"). Because Robert Hans van Gulik's famous book about the qin is called The Lore of the Chinese Lute, the guqin is sometimes inaccurately called a lute. Other incorrect classifications, mainly from music compact discs, include "harp" or "table-harp".