Clouds that look like cotton balls are called cumulus clouds. They form when warm, moist air rises. As this air rises, it cools, condensing into water droplets that become puffy clouds. Cumulus clouds develop from the bottom upward.
A:The general English definition of constellation is a group or configuration of objects, characteristics, ideas, feelings, etc, as in "a constellation of qualities." The noun constellation is used in astronomy, astrology and general English.
A:Stargazers in ancient Greece observed the "pictures" formed by stars and named the Orion constellation after a mythological hunter. Many origin stories exist, but one popular version recounts Orion's quest to defeat a giant scorpion sent by Gaia, the goddess of Earth, according to the Windows to the Universe.
A:The Earth goes through a constant cycle of day and night because it rotates on an axis. At any point in time, only about half of the Earth is facing the sun, while the other side is facing away from it. The side that is facing the sun is illuminated (day) while the side facing away from the sun remains dark (night).
A:The Cassini Division, a gap in the rings of Saturn, is caused by gravitational pull from Saturn’s moon Mimas. The moon’s gravity affects the tiny particles that make up the rings, creating what looks like empty space. Other divisions in Saturn’s rings are the result of similar interactions with the planet’s moons.
A:The sun and planets follow the ecliptic, an imaginary plane in the celestial sphere tilted approximately 23.5 degrees relative to the celestial equator. Earthbound observers see the sun and planets move along the ecliptic arc, rising up from the east and setting in the west.
A:There are many reasons that classifying organisms is important, such as helping understand the genetic relationships between different groups and species, helping with wide studies of organisms and helping to develop new biological sciences such as biogeography. Each of the groups and sets are created by studying the differences and similarities found in species and organisms known.
A:The nitrogen cycle is important due to its role as a basis for the production of nitrogen that is essential to all forms of life. The atmosphere contains a vast majority of the natural nitrogen found on Earth.
A:Buffers are an important part of the biochemical processes of living things because they help keep the pH within organisms' body stable. Most biochemical reactions that are essential for life only take place in a narrow pH range. The presence of buffers ensures that the body's pH remains in this range, despite changes in the surroundings.
A:Also known as true bacteria, eubacteria obtain energy from light and inorganic and organic chemicals. These bacteria reproduce asexually from spores that are resistant to dehydration and moist temperatures.
A:Some of the primary functions of proteins include their enabling the biochemical reactions that help digest food and respond to stimuli, replicating DNA and providing the structural building blocks for muscles, skin and other tissues. Acting as catalysts, enzymes are the protein-based molecules that play an important role in a wide range of organic processes. Proteins also help to transport nutrients and vital substances, one example being hemoglobin, which transports oxygen throughout the bloodstream.
A:Chemistry improves almost all aspects of people's lives either directly or indirectly; advances in chemistry have led to life-saving medicine, improvements to the way humans treat their environment, sources of green energy and other useful technologies. Chemistry is often referred to as the "central science" because of its role in connecting and advancing disparate fields, and its effects on people's lives reflect its diverse applications.
A:Chemistry is the scientific study of the composition, properties and interactions of organic and inorganic matter. Chemistry is commonly used in fields of science and medicine, according to About.com.
A:Existing oil was formed from the remains of microscopic plants and animals that died in the ocean between 10 and 600 million years ago. When these organisms died, they became buried in the mud and sand at the bottom of the sea. Over millions of years, sedimentary layers of decayed organisms were formed.
A:Info.com discusses that sandpaper is a coated abrasive product that generally consists of flexible backing, a film of adhesive and a coating of abrasive grains. Different kinds of resins and hide glues are used as adhesives for sandpaper.
A:Sodium is used to create industrial and manufacturing compounds and is also a common additive in salts, baking soda and baking powder. Sodium is unique in that it is a mineral with nutritional and economic benefits. Sodium is essential for humans and other organisms and is also a key ingredient in many compounds, such as sodium compounds.
A:Red and yellow do make people hungry, according to research results. People eat more when they are surrounded by warm colors, such as yellow, orange and red. Cold colors, such as blue, purple and black, suppress the appetite.
A:The basic color combination that makes purple or violet is blue and red. Blue and red are primary colors. However, to get a violet or purple color that is not muddy looking, one needs the right types of blue and red colors.
A:Yellow and red combine to make orange. Orange is a secondary color while yellow and red are primary colors. All colors can be made from a combination of the three primary colors: yellow, red and blue.