Recent Questions
It takes one thousand thousand to make up a million. In the arrangement of numbers according to the place value system from right to left according to the numbering system of the Indians, it is thus: Units, Tens, Hundreds, Thousands,…
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The Earth is divided into 24 different time zones, with respect to the number of hours it takes the Earth to complete a resolution along its axis. Every 60 minutes, the Earth rotates exactly 15° (in longitude), and a complete…
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A mole is a unit of measurement that is assigned to the quantity of any substance. It is the molarity of a given substance, and it is often measured in mols per meter. A molecule is a group of atoms…
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An amoeba obtains its food by fusing with the food particle along its path. How they do this is by creating two branch-like protrusions of the part of their unicellular matter that is closest to the food particle. This branch…
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An elastic collision occurs when the sum of the kinetic energy of a moving object is equal to the sum of the kinetic energy of the object after collision with another object. An inelastic collision occurs when there is a…
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The temperature where °C and F have the same value is at -40°. Explanation: The formula for converting temperature from Celsius scale to Fahrenheit scale is thus: °C = (F - 32) times (5/9), while the conversion from Fahrenheit to…
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The end products of photosynthesis are oxygen and glucose. Some carbohydrates are also produced -particularly sucrose and starch. Photosynthesis is the process by which autotrophic plants manufacture their own food through the use of sunlight. In photosynthesis, plants absorb sunlight…
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Iron has 2 valence electrons. Valence electrons refer to the number of electrons that an element has in its outermost shell. This outermost electron is referred to as the ionization power of an atom. This means the number of electrons…
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Answer: D. Sugar burns when heated on a skillet. A chemical reaction is one that when it occurs, new substances are formed, and it is not easily reversible by simple chemical processes. A. When sugar dissolves in water, no new…
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D. Nitrogen. Greenhouse gases are gases that transfer heat from the sun's heat in one-way traffic. As these gases increase, they expand, causing heat to enter the Earth through the atmosphere, but they refuse to allow these radiations to leave…
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No, 0 is not a rational number because it cannot be expressed as a simple fraction with a non-zero denominator. Rational numbers are numbers that can be expressed in the form of simple fractions, where the denominator is a non-zero…
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In physics, magnitude refers to the dimensions of an object or quantity when compared to its motion. These dimensions include the size of the object or quantity, its direction, etc. In the example 10km/hr, 10 is the magnitude of speed…
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The word "read", a homonym of "reed" belongs to the class of verbs known as irregular verbs, seeing as both the present and past tense are spelled the same way. The past tense of the word "read" is pronounced as…
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Air is regarded as a mixture rather than a compound. All its components can be separated by distilling liquid air. Also, air exhibits the individual properties of its component gases, something that can be shown by its different boiling temperatures.…
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Three properties of air are: a. Air is a homogeneous mixture of gases that combine to become colorless and odorless. However, air consists of dust particles, chippings of other matter, other impurities, and waste. b. Air has a mass of…
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Answer: B. An asset is any commodity or item that has the potential of yielding returns for business owners in the future. An owner's equity is not a business asset but the owner's asset.
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The correct answer is B. They are consumed by the reactions they catalyze
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Prokaryotic cells are cells that have organelles that lack membranes and have nucleoids instead of nuclei. Prokaryotic cells are much smaller than eukaryotic cells. They may exist in several different shapes like rods, spheres, coccus, spirochetes, etc. Generally, prokaryotic cells…
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The most reactive group of elements on the periodic table are elements in Group 1. They are highly reactive because the distance between the outermost electron and the nucleus increases as you move further down the group. These elements are…
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Answer: C The palatine bone forms the hard palate. The cranial bones include the frontal (forehead bone), the temporal bone (the sides and base of the skull), the parietal bone (both sides of the skull), the ethmoid bone (between the…
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Answer: A Nitrogen, Arsenic, and Bismuth are group 5A (or group 15 VA) elements, also called pnictogens, and have five valence electrons each.
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Temperature is a continuous variable and not a discrete variable. This is because while the values of a discrete variable is gotten by counting data, the values of a continuous variable are obtained by measuring provided data. Temperature can be…
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One difference in the DNA replication of prokaryotic and eukaryotic cells is that while the DNA of eukaryotic cells is contained in the cell's nucleus, the DNA of prokaryotic cells is contained in the cell's cytoplasmic matter. In eukaryotic cells,…
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Cells are referred to as the building blocks of an organism because they are the basic, structural, and functional unit of life, from which whole organisms develop. Except for simple unicellular organisms, all existing cells of multicellular organisms stem from…
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Answer: C Homeostasis is the process by which the body seeks to maintain a near-constant internal temperature while considering the external temperature of the body. This negates option D. This means the body's temperature may fluctuate, so A is wrong.…
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Answer: B Globalization is considered a capitalist way of authority that aims at converting local markets and hierarchical structures to a general, global market. The deregulated nature of this system hits a nation's economy the hardest.
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In predation, an organism that is higher on the food chain feeds on an organism from a lower level on the food chain. Parasitism occurs irrespective of their levels on the food chain. Predation takes place between the predator and…
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Answer: D. Certificate of deposit. Money market instruments are differentiated by how they attain maturity in less than a year. During this time, a customer is granted loans in exchange for assets that can be traded and recovered in less…
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Despite the sharp variations in their functions, acids and bases have a few similarities. a. Both acids and bases are water-soluble. They dissolve in water to become diluted. b. Both acids and bases are good conductors of electricity. c. When…
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An atom is the smallest component of an element, while a molecule is made up of two or more atoms. While atoms comprise protons, neutrons, and electrons, molecules comprise two or more atoms that are combined chemically. Atoms cannot be…
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