Science

A:

Nitrogen can be found in all living organisms on Earth while also being present in soil, water and air. It is an important component in biological compounds found all throughout nature.

See Full Answer
Filed Under:
    • What is the farthest star from Earth?

      Q: What is the farthest star from Earth?

      A: Scientists will never know the farthest star from Earth, as the star is so far away that its light has not, nor will ever, have enough time to reach Earth. Even the stars within the visible universe are far too numerous to count, but the farthest one that humans have ever detected is about 55 million light years away. This incredibly distant star is called SDSS J 122952.66 +112227.8.
      See Full Answer
      Filed Under:
    • What is Jupiter's atmosphere made up of?

      Q: What is Jupiter's atmosphere made up of?

      A: The atmosphere of Jupiter consists of 90 percent hydrogen gas and nearly 10 percent helium. However, its atmosphere has trace amounts of ammonia, sulfur and water vapor. Jupiter is a gas giant that is also the biggest planet in the solar system.
      See Full Answer
      Filed Under:
    • What is terrestrial navigation?

      Q: What is terrestrial navigation?

      A: Terrestrial navigation is a field of study that helps sea-faring people locate points at sea and on the land. Similarly, it involves being able to identify the position of the ship anywhere in the world. Students are instructed in the use of nautical charts, compass corrections and voyage planning.
      See Full Answer
      Filed Under:
    • What types of equipment do astronomers use?

      Q: What types of equipment do astronomers use?

      A: According to NASA, modern astronomers’ tools include advanced telescopes capable of studying light reflected from the sun, moon, planets, comets and stars. Radio telescopes are utilized in the study of radio waves, while space-borne gamma ray telescopes aid in the study of gamma rays.
      See Full Answer
      Filed Under:
    • What are meteorites made of?

      Q: What are meteorites made of?

      A: The meteorites that land on earth can be made of stone, iron or stony iron. A few meteorites are made of volcanic glass, but scientists aren't sure that all of these meteorites are extraterrestrial in nature. They believe some of these meteorites are formed when material from an impact crater liquefies and then turns to glass as it's ejected into the atmosphere.
      See Full Answer
      Filed Under:
    • Where on the celestial sphere can you look for the planets?

      Q: Where on the celestial sphere can you look for the planets?

      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.
      See Full Answer
      Filed Under:
    • See More Astronomy Questions
    • What is the function of chlorophyll?

      Q: What is the function of chlorophyll?

      A: Chlorophyll’s function in plants is to absorb light and transfer it through the plant during photosynthesis. The chlorophyll in a plant is found on the thylakoids in the chloroplasts.
      See Full Answer
      Filed Under:
    • What is a complex organism?

      Q: What is a complex organism?

      A: Complex organisms have specialized tissues, such as nerves, organs or flowers. In contrast, simple organisms, such as amoeba or yeast, exist as a single cell. Larger organisms tend to have more specialized cells that smaller ones.
      See Full Answer
      Filed Under:
    • Where does the energy for photosynthesis originate?

      Q: Where does the energy for photosynthesis originate?

      A: The energy required for photosynthesis comes from the sun as light energy; plants transform this light energy into chemical energy, or sugars. Plants perform this energy conversion using light, water, carbon dioxide and a green substance called chlorophyll. Photosynthesis takes place in a plant's leaves.
      See Full Answer
      Filed Under:
    • How do bacteria multiply?

      Q: How do bacteria multiply?

      A: Bacteria multiply through binary fission. This process involves the division of a single cell into two identical daughter cells, and it starts when the DNA of a bacterium divides into two replicates. The bacterial cell splits into two daughter cells that have identical DNA to the parent cell.
      See Full Answer
      Filed Under:
    • How does a volvox eat?

      Q: How does a volvox eat?

      A: The volvox primarily eats through photosynthesis. Individual cells within the organism contain a red eyespot and, along with chloroplasts, make food from sunlight.
      See Full Answer
      Filed Under:
    • Why are animals important?

      Q: Why are animals important?

      A: Animals are important for many reasons, including the assistance they give to plant ecosystems, the psychological and emotional support they can offer to humans, and the knowledge gained from the human study of them. Some of the most important animals include primates, bats and bees.
      See Full Answer
      Filed Under:
    • See More Biology Questions
    • What are some examples of acids?

      Q: What are some examples of acids?

      A: Examples of acids include vinegar, citrus fruits, tomato juice, black coffee, bananas, milk, sulfuric acid, battery acid and hydrochloric acid, which is a digestive compound found in the stomach. Acids are ionic compounds made up of positively and negatively charged ions that separate in water to form hydrogen ions.
      See Full Answer
      Filed Under:
    • Where is iodine found in the world?

      Q: Where is iodine found in the world?

      A: Oceans are one of the world's greatest sources of iodine. Iodine can also be found in other salty waters, such as brines found near oil deposits. China, Japan, Russia and Chile are some of the top global producers of iodine.
      See Full Answer
      Filed Under:
    • What are some other names for formaldehyde?

      Q: What are some other names for formaldehyde?

      A: Formaldehyde can also be known as methanal, which is the substance's systematic name, or by alternate names like methyl aldehyde, methylene glycol or methylene oxide. This chemical compound is the simplest member of the aldehyde functional group and has a chemical formula of CH2O or HCHO. Though it is a gas at room temperature, formaldehyde solutions are used in the preservation of biological specimens and as a disinfectant.
      See Full Answer
      Filed Under:
    • What are the properties of cast iron?

      Q: What are the properties of cast iron?

      A: Cast iron is brittle, hard and more fusible than steel. It is also nonmalleable, which means that it cannot be stretched, hammered or bent into shape. Its has a crystalline structure, and it is weak in tension.
      See Full Answer
      Filed Under:
    • What is the boiling point of sodium?

      Q: What is the boiling point of sodium?

      A: Sodium has a boiling point of 883 degrees Celsius or 1621 degrees Fahrenheit. It has a melting point of 97.72 degrees Celsius or 207.9 degrees Fahrenheit.
      See Full Answer
      Filed Under:
    • What are properties in science?

      Q: What are properties in science?

      A: In chemistry, the term "property" is frequently used to describe the attributes of a substance, such as density, oxidation, state of matter, mass, conductivity, color, bonding and many other traits. These properties are used to understand how a substance behaves in different situations.
      See Full Answer
      Filed Under:
    • See More Chemistry Questions