Select all of the reasons why water is essential to life.Multiple select question.It regulates temperature.It dissolves a wide variety of substances.It plays a role in many chemical reactions.Its solid form is more dense than its liquid form.

Select all of the reasons why water is essential to life.

Water, a substance composed of the chemical elements hydrogen and oxygen and existing in gaseous, liquid, and solid states. It is one of the most plentiful and essential of compounds. A tasteless and odourless liquid at room temperature, it has the important ability to dissolve many other substances. Indeed, the versatility of water as a solvent is essential to living organisms. Life is believed to have originated in the aqueous solutions of the world’s oceans, and living organisms depend on aqueous solutions, such as blood and digestive juices, for biological processes. Water also exists on other planets and moons both within and beyond the solar system. In small quantities water appears colourless, but water actually has an intrinsic blue colour caused by slight absorption of light at red wavelengths.Although the molecules of water are simple in structure (H2O), the physical and chemical properties of the compound are extraordinarily complicated, and they are not typical of most substances found on Earth. For example, although the sight of ice cubes floating in a glass of ice water is commonplace, such behaviour is unusual for chemical entities. For almost every other compound, the solid state is denser than the liquid state; thus, the solid would sink to the bottom of the liquid. The fact that ice floats on water is exceedingly important in the natural world, because the ice that forms on ponds and lakes in cold areas of the world acts as an insulating barrier that protects the aquatic life below. If ice were denser than liquid water, ice forming on a pond would sink, thereby exposing more water to the cold temperature. Thus, the pond would eventually freeze throughout, killing all the life-forms present.(Adapted from https://www.britannica.com/)Text 2Water cycle, cycle that involves the continuous circulation of water in the Earth-atmosphere system. Of the many processes involved in the water cycle, the most important are evaporation, transpiration, condensation, precipitation, and runoff. Although the total amount of water within the cycle remains essentially constant, its distribution among the various processes is continually changing.Evaporation, one of the major processes in the cycle, is the transfer of water from the surface of the Earth to the atmosphere. By evaporation, water in the liquid state is transferred to the gaseous, or vapour, state. This transfer occurs when some molecules in a water mass have attained sufficient kinetic energy to eject themselves from the water surface. The main factors affecting evaporation are temperature, humidity, wind speed, and solar radiation. The direct measurement of evaporation, though desirable, is difficult and possible only at point locations. The principal source of water vapour is the oceans, but evaporation also occurs in soils, snow, and ice. Evaporation from snow and ice, the direct conversion from solid to vapour, is known as sublimation. Transpiration is the evaporation of water through minute pores, or stomata, in the leaves of plants. For practical purposes, transpiration and the evaporation from all water, soils, snow, ice, vegetation, and other surfaces are lumped together and called evapotranspiration, or total evaporation.Water vapour is the primary form of atmospheric moisture. Although its storage in the atmosphere is comparatively small, water vapour is extremely important in forming the moisture supply for dew, frost, fog, clouds, and precipitation. Practically all water vapour in the atmosphere is confined to the troposphere (the region below 6 to 8 miles [10 to 13 km] altitude).The transition process from the vapour state to the liquid state is called condensation. Condensation may take place as soon as the air contains more water vapour than it can receive from a free water surface through evaporation at the prevailing temperature. This condition occurs as the consequence of either cooling or the mixing of air masses of different temperatures. By condensation, water vapour in the atmosphere is released to form precipitation.(Adapted from https://www.britannica.com/)Which of the following best describes the main idea of Text 1?

Water is important to all living things.How does the high heat capacity of water help support life?Choose 2 answers:Choose 2 answers:(Choice A)   It makes water safer for most animals to consume as a high heat capacity reduces harmful pathogens in the solution.AIt makes water safer for most animals to consume as a high heat capacity reduces harmful pathogens in the solution.(Choice B)   It makes water better at dissolving nonpolar substances like oils.BIt makes water better at dissolving nonpolar substances like oils.(Choice C)   It makes water a great habitat for marine life because marine organisms do not experience a wide temperature range.CIt makes water a great habitat for marine life because marine organisms do not experience a wide temperature range.(Choice D)   It allows animals to have highly regulated internal body temperatures.DIt allows animals to have highly regulated internal body temperatures.

How are the properties of water essential for sustaining life on Earth?

Due to the special properties of water molecules, water can be very useful. Which of the following statements are true for water? (Select all that apply.)Multiple select question.Large bodies of water modify climatic conditions by slowing the rate of temperature changes in surrounding areas.Water is widely used to dissolve many substances, because it is a nonpolar solvent.Water can be used to dissolve and apply many other substances, such as fertilizers, pesticides, detergents, and some paints.Water does not retain heat well and easily changes temperature, making it a poor choice as an industrial coolant.