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  • Science
    A rainbow is made by the reflection and refraction of light that interacts with raindrops. Depending on how this interaction occurs with your location relative to the sun and the raindrops you may...

    Asked by enotes on via web

    7 educator answers.

  • Chemistry
    A compound is a chemical combination of two or more elements in definite proportions. For example, two hydrogen molecules + one oxygen molecule= one water molecule. A solution is a physical...

    Asked by cm16 on via web

    4 educator answers.

  • Science
    There are 206 bones in an normal adult skeleton and about 300 in an infants. The difference comes from the fact the some bones fuse over time into a single bone. For example, an infants paired...

    Asked by enotes on via web

    4 educator answers.

  • Science
    Determining how much blood is in the average human body depends on how much a person weighs. A man weighing 154 pounds (69.8 kilograms) would have about 5.5 quarts of blood. A woman weighing 110...

    Asked by enotes on via web

    1 educator answer.

  • Science
    The moon is a satellite of planet Earth. The moon revolves around the Earth in an elliptical orbit, which means that the moon-Earth distance is not constant: it changes depending on the moon's...

    Asked by enotes on via web

    1 educator answer.

  • Science
    I have to correct the first answerer--the "normal" number of 46 chromosomes is the DIPLOID number, not the haploid. In egg and sperm cells, half the number is present, and this is known as the...

    Asked by enotes on via web

    6 educator answers.

  • Science
    The number of muscles in our body varies from around 640 to 850. We have 3 types of muscles in our body: skeletal, visceral, and cardiac. The skeletal muscles are voluntary, while the visceral...

    Asked by enotes on via web

  • Speech
    If this is a persuasive speech, any of the hot-button political issues would probably do the trick:-- Gay Marriage: Right or Wrong?-- Gun Control: Good or Bad?-- The Death Penalty: Use it or...

    Asked by hima-20 on via web

    10 educator answers.

  • Science
    The gluteal muscles are largest. The gluteus minimus and maximus comprise this group. They are your buttocks. A very close second is the bilateral latissimus dorsi muscles which are your "lats"....

    Asked by maxkingz69 on via web

    1 educator answer.

  • Science
    The advantages of non-renewable energy are found in two areas: cost and availability. Most of the energy-consuming products that run off of non-renewable energy sources have very little real...

    Asked by birch123 on via web

    3 educator answers.

  • Solar System
    Our data has improved considerably in the last 20 years. Mercury: no moons Venus: no moons Earth: 1 moon Mars: 2 moons, Phobos, Deimos Jupiter: 67 moons, some of which do not yet have proper...

    Asked by enotes on via web

    1 educator answer.

  • Science
    Osmosis is diffusion of water across a semi-permeable membrane. Salt is too big to pass through a cell membrane, but water molecules can fit. Since everything wants to reach equilibrium, the only...

    Asked by babycandy22 on via web

    1 educator answer.

  • Science
    The measure of acidity of a substance is known as pH. Pure water, which has pH of 7, is neutral. Substances with a pH less than 7 are considered acidic and substances with a pH of greater than 7...

    Asked by enotes on via web

  • Science
    Resources can be divided into two categories: renewable and non-renewable.Renewable resources can be easily replaced after they are used. For example, sunlight, wind, beef, corn, and...

    Asked by sajo on via web

    2 educator answers.

  • Physics
    The formula for pressure is P = F/A In this equation, P stands for pressure while F stands for force and A stands for area. Pressure is typically measured in a unit called the Pascal. So what this...

    Asked by ustaad on via web

    1 educator answer.

  • Science
    An average person uses around 100 litres in one day.

    Asked by enotes on via web

  • Biochemistry
    This question deserves several "answers" aimed at different levels.For elementary-school students, it is important to know that photosynthesis is how green plant cells trap sunlight to...

    Asked by Scott Locklear on via web

    2 educator answers.

  • Science
    There are several differences between monocots and dicots, here are three big ones. The main one (that gave rise to the names) is that monocots have seeds that are one piece (like corn), while...

    Asked by kalaun on via web

    2 educator answers.

  • Science
    A biome is another term for an ecosystem. It is defined as a community of various plants and animals that inhabit a particular type of geographic region of Earth. Biomes are often defined by...

    Asked by enotes on via web

    2 educator answers.

  • Physics
    Mass is "the amount of stuff" in an object. That is, the amount of atoms and molecules present. Mass in science, is measured in the metric system using units such as kilogram (about 2.2...

    Asked by shiloh on via web

    2 educator answers.

  • Physics
    The term "relative density" means the same as "specific gravity." It is a measure of how dense one thing is when compared to a given reference. The reference is usually water. With respect to...

    Asked by mahmuda092569 on via web

    1 educator answer.

  • Chemistry
    I need to know what some non-examples of chemical properties are not examples of it. I need non-examples

    Asked by kal431 on via web

  • Science
    I believe that the percentage of land is closer to 20% rather than 30. Land covers around 20% of the earth's surface and water the other 80%. 97% of the world's water is seawater, and only 3% is...

    Asked by enotes on via web

  • Science
    Barometric pressure is another name for atmospheric pressure. It is the force per unit area exerted on a surface by the weight of air above that surface. In other words, it is the pressure exerted...

    Asked by enotes on via web

  • Physics
    Most of the time, people ask this question with the idea of a Newtonian "feather vs. bowling ball" concept in mind. Based on those terms, the typical answer is correct: two objects will fall at the...

    Asked by himanshu9 on via web

    3 educator answers.

  • Science
    The centre of the sun is about 15,700,000 kelvins (at that heat and inaccuracy, similar to Celsius) according to our best models, although we could never really know. The photosphere (the visible...

    Asked by enotes on via web

    1 educator answer.

  • Science
    Not many, newborn infants have more cartilage than bone at birth. This is why newborns are so limber, cartilage is more pliable than bone. Bones form and develop over time by a process called...

    Asked by victorsnanny on via web

    1 educator answer.

  • Science
    Mercury is white; Venus is yellow; Earth is blue; Mars is red; Jupiter is stiped with red, white, yellow and gray; Saturn is yellow with viberant rings; Uranus is greenish-blue and Neptune is dark...

    Asked by enotes on via web

  • Astronomy
    Seems like this would be an easy question for you to find the answer yourself. In fact, if you had typed your question into the search box on the eNotes home page, you would have been directed to a...

    Asked by than on via web

    2 educator answers.

  • Science
    Fungi exist as molds and yeasts. A fungal infection is called a mycosis, these can manifest as a local infection or a systemic infection. A very common fungal infection is caused by a "yeast like...

    Asked by torrey on via web

    4 educator answers.

  • Science
    Nuclear fusion is taking two atom and combining them in to one atom, while nuclear fission takes one atom and splits it to one atom.

    Asked by enotes on via web

  • Biology
    Cells are the basic unit of structure and form in all living things. Some organisms are made of only one cell (unicellular) while others are made of trillions (multicellular). Each cell must be...

    Asked by ohdang on via web

    1 educator answer.

  • Biology
    The depends on how you define "in." Most stories about spiders laying eggs under human skin, or in the muscular tissue, are urban myths. They aren't supported by evidence, and mostly show...

    Asked by blueeyes1335 on via web

    1 educator answer.

  • Science
    A.M mean before noon and P.M mean after noon

    Asked by enotes on via web

  • Science
    Research may be very broadly defined as systematic gathering of data and information and its analysis for advancement of knowledge in any subject. research attempts to find answer intellectual and...

    Asked by yogesh779 on via web

  • Science
    ~62% is the percent of human body weight water.

    Asked by enotes on via web

  • Science
    Reading is a complex combination of skills. The human brain must act like a computer: data is taken in via the eyes (or fingers, in the case of Braille), processed within the brain, interpreted and...

    Asked by malfoyxx321 on via web

    8 educator answers.

  • Science
    You can add to the previous list other major infectious viruses of the past and present, including: 1) The West Nile Virus - which affects mainly animals, but recently has crossed over into human...

    Asked by happyface22 on via web

    7 educator answers.

  • Science
    There are 37 trillion cells in the average human body.

    Asked by enotes on via web

  • Chemistry
    Compounds are substances that can be broken down through various chemical processes into elements. Elements are substances that cannot be broken down any further; all the atoms of an element are...

    Asked by oliviastabley on via web

    3 educator answers.

  • Science
    you

    Asked by enotes on via web

  • Science
    Eutrophication is a process by which plant growth increases in a lake or pond. In time, eutrophication may cause plants to completely fill in the area where a lake or pond once stood. The word...

    Asked by enotes on via web

  • Science
    The cell theory was arrived at after much study of living cells due to the intellectual contributions of Matthias Schleiden who noted all plants contains cells, and in 1838 added that different...

    Asked by mgoun on via web

    2 educator answers.

  • Science
    DNA and RNA both carry genetic information but there are more than a couple differences between them. DNA is deoxyribonucleic acid and RNA is ribonucleic acid. Therefore DNA carries the sugar of...

    Asked by enotes on via web

  • Science
    Renewable energy sources are ones which don't run out - which can be renewed. We can keep using them and using them, and we'll never run out. Examples of renewable sources include wind, water power...

    Asked by fjnfkbjnkgjdf on via web

    1 educator answer.

  • Science
    Sampling is a method of studying from a few selected items,instead of the entire big number of units. The small selection is called sample. The large number of items of units of particular...

    Asked by kunal456 on via web

  • Science
    The Lewis dot structure for Magnesium is an Mg with 2 dots which stand for its two valence electrons. The Lewis dot structure for Sulfur is an S with 6 dots which stand for its six valence...

    Asked by gus0106 on via web

    2 educator answers.

  • Science
    Differences: - DNA is double-stranded, RNA is single-stranded. - DNA contains a pentose sugar Deoxyribose, RNA contains the pentose sugar Ribose. A pentose is a 5-carbon sugar molecule. - DNA is...

    Asked by bubbles13 on via web

    2 educator answers.

  • Science
    Technological breakthroughs are a double-edged sword. The benefit usually is apparent immediately; the drawbacks may take some time to discover. Consider the steam engine -- the device that...

    Asked by nafi on via web

    8 educator answers.

  • Biochemistry
    Aerobic respiration is the release of energy from glucose or in the presence of Oxygen. Anaerobic respiration refers to the oxidation of a molecule (or molecules) to produce engery in the absence...

    Asked by Scott Locklear on via web

    2 educator answers.

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