Acid rain is rain or any other form of precipitation which is unusually acidic. It has dangerous effects on the environment and on structures. It is mostly caused by emissions due to human activity of sulfur and nitrogen compounds which respond in the atmosphere to produce acids. In recent years, many governments have introduced laws to lessen these emissions. Both lower pH and higher aluminum concentration in the surface water that occur as a result of acid rain can cause damage to fish and other aquatic animals. At pHs lower than 5 most of the fish eggs would not hatch and lower pHs can kill adult fish. As lakes become more acidic biodiversity is also reduced. Soil biology can be critically damaged by acid rain. Some tropical microbes can quickly consume acids but other microbes are incapable to tolerate low pHs and are killed. The enzymes of these microbes are denatured by the acid. The hydronium ions of acid rain also mobilize toxins and filter away essential nutrients and minerals

The coconut palm is grown throughout the tropical world, for decoration as well as for its many cooking and non-culinary uses, virtually every part of the coconut palm has some human use.The flowers of the coconut palm are polygamomonoecious, with both male and female flowers in the similar inflorescence. Flowering occurs continuously, with female plants producing seeds. Coconut palms are believed to be largely cross-pollinated, although some dwarf varieties are self-pollinating. Coconut water can be used as an intravenous fluid.

Dreams are the images, thoughts and feelings experienced while sleeping, particularly strongly associated with swift eye movement sleep. The contents and purpose of dreams are not fully silent, though they have been a topic of gossip and interest throughout recorded history.

There is no universally granted biological definition of dreaming. General examination shows that dreams are strongly associated with rapid eye movement (REM) sleep, during which an electroencephalogram shows brain commotion to be most like restiveness. Participant-remembered dreams during non-REM sleep are normally more humdrum in comparison. During a typical lifespan, a human spends a total of about six years dreaming. It is unknown where in the brain dreams instigate, if there is a single origin for dreams or if multiple portions of the brain are involved, or what the purpose of dreaming is for the body or mind.

When the body decides that it is time to sleep, neurons near the eyes start to send signals throughout the body. According to Michael Smith, these neurons are located in such close propinquity to neurons that control eyelid big physique that the eyelids begin to grow deep. Glands begin to secrete a hormone that helps induce sleep and neurons send signals to the spinal flex which make the body relax.

Cricket is a bat-and-ball sport contested by two teams, typically of eleven players each. A cricket match is played on a meadow field, roughly oval in shape, in the centre of which is a flat strip of ground 22 yards (20.12 m) long, called a cricket ground. A wicket, usually made of lumber, is placed at each end of the pitch.

The bowler, a player from the fielding team, bowls a hard, fist-sized cricket ball from the locality of one wicket towards the other. The ball usually bounces once before reaching the batsman, a player from the opposing team. In defence of the wicket, the batsman plays the ball with a wooden cricket bat. Meanwhile, the other members of the bowler's team stand in various positions around the field as fielders, players who retrieve the ball in an crack to stop the batsman scoring runs, and if possible to get him or her out. The batsman — if he or she does not get out — may run between the wickets, exchanging ends with a second batsman, who has been waiting near the bowler's wicket. Each completed exchange of ends scores one run. Runs are also scored if the batsman hits the ball to the boundary of the playing area. The match is won by the team that scores more runs.

Cricket has been an established team sport for hundreds of years and is thought to be the second most popular sport in the world. More than 100 countries are affiliated to the International Cricket Council, cricket's international governing body. The sport's modern form originated in England, and is most popular in the present and former members of the Commonwealth. In many countries including India, Pakistan, Bangladesh, Sri Lanka and Australia, cricket is the most popular sport. It is also a major sport in England, New Zealand, South Africa, Zimbabwe and the English-speaking countries of the Caribbean, which are collectively known in cricketing vernacular as the West Indies. Many countries also have well-established amateur club competitions, including the Netherlands, Kenya, Nepal and Argentina.

An election is a resolution making process where a people chooses an individual to hold official offices. This is the usual method by which modern egalitarianism fills offices in the parliament, sometimes in the executive and magistrates, and for regional and local government. This is also typically the case in a wide range of other private and business organizations, from clubs to charitable associations and corporations. However, as Montesquieu points out in Book II, Chapter 2 of "The Spirit of Laws," in the case of elections in either a republic or a democracy, voters alternate between being the rulers of the country as well as being the subjects of the government, with the act of voting being the independent (or ruling) capacity, in which the people act as "masters" selecting their government "servants." Rather, the unique character of democracies and republics is the appreciation that the only legitimate source of power for government "of the people, by the people, and for the people" is the consent of the governed—the people themselves.

The general acceptance of elections as a tool for selecting representatives in modern democracies is in distinction with the practice in the democratic archetype, ancient Athens, where elections were considered an oligarchic institution and where most political offices were filled using sortition, also known as allotment, where officeholders are chosen by lot.

Electoral reform describes the process of introducing fair electoral systems where they are not in place, or improving the fairness or efficiency of existing systems. Psephology is the study of results and other statistics relating to elections.

Beauty is commonly defined as a distinctive present in a person, place, object or idea that provides a perceptual experience of delight, meaning or satisfaction to the mind or to the eyes, arising from sensory manifestations such as a shape, color, persona, sound, design or rhythm. Beauty is studied as part of aesthetics, sociology, social psychology and culture. Beauty, as a cultural creation, is also tremendously commercialized.

The subjective experience of "beauty" often involves the elucidation of some entity as being in balance and concord with nature, which may lead to feelings of attraction and emotional well-being. "Beauty is in the eye of the beholder" is a common idiom attributed to this concept.

In its most profound sense, beauty may provoke a relevant experience of positive reflection about the meaning of one's own existence. An "object of beauty" is anything that reveals or resonates with personal meaning. Hence sacred and moral teachings often focus on the religion and virtue of beauty, and to assert natural beauty as an aspect of a mysticism and truth.

Nature, in the broadest wisdom, is the natural world, physical universe, material world or material universe. Nature is the phenomena of the physical world, and life in general. artificial objects and human interaction are not considered part of nature except qualified in ways such as "human nature" or "the whole of nature". Nature is generally notable from the supernatural.

The word nature is derived from the Latin word natura, or "the course of things, natural character. Natura was a Latin translation of the Greek word physis, which originally related to the intrinsic character that plants, animals, and other features of the world develop of their own accord. The concept of nature as a whole, the physical universe, is one of several expansions of the original notion; it began with certain core applications of the word by pre-Socratic philosophers, and has gradually gained currency ever since. This usage was confirmed during the advent of modern scientific method in the last several centuries.

Within the various uses of the word today, "nature" may refer to the general realm of various types of living plants and animals, and in some cases to the processes connected with dead objects – the way that meticulous types of things exist and change of their own accord, such as the weather and geology of the Earth, and the matter and energy of which all these things are composed. It is often taken to mean the "natural environment" or wilderness – wild animals, rocks, forest, beaches, and in general those things that have not been to a large extent altered by human intervention, or which persist despite human intervention. This more traditional concept of natural things which can still be found today implies a distinction between the natural and the artificial, with the latter being understood as that which has been brought into being by a human or human-like perception or mind.