Is a feather heavier than a brick? If stacked/piled up, the bricks would weigh more because more of the bricks are closer to the center of the Earth. However, if we spread them out, the feathers would weigh more, since you can lay the feathers out a lot thinner than the bricks. What’s heavier 100 […]
How do meiosis I and meiosis II contribute to genetic variation?
How do meiosis I and meiosis II contribute to genetic variation? Because the duplicated chromatids remain joined during meiosis I, each daughter cell receives only one chromosome of each homologous pair. By shuffling the genetic deck in this way, the gametes resulting from meiosis II have new combinations of maternal and paternal chromosomes, increasing genetic […]
What are 3 causes of soil erosion?
What are 3 causes of soil erosion? Causes of Soil Erosion Rainfall and Flooding. Higher intensity of rainstorm is the main cause of soil erosion. Agriculture. The farming practices are the major cause of soil erosion. Grazing. Logging and Mining. Construction. Rivers and Streams. Heavy Winds. Loss of Arable Land. What is the cause and […]
What are the 7 derived units?
What are the 7 derived units? The SI is founded on seven SI base units for seven base quantities assumed to be mutually independent, as given in Table 1…. Derived quantity Name Symbol speed, velocity meter per second m/s acceleration meter per second squared m/s2 wave number reciprocal meter m-1 mass density kilogram per cubic […]
What is the single most important factor in the development of cancer?
What is the single most important factor in the development of cancer? The use of tobacco products is the single most important factor in increasing cancer risk. The hazards of tobacco are due to a large amount of carcinogenic compounds: those which are already in the tobacco product and those that form during smoking. What […]
What type of reaction is 2 HgO 2 Hg O2?
How do you break the current in a circuit?
How do you break the current in a circuit? The most common way to measure current in a circuit is to break the circuit open and insert an “ammeter” in series (in-line) with the circuit so that all electrons flowing through the circuit also have to go through the meter. What happens when there is […]
How is a continuous spectrum formed?
How is a continuous spectrum formed? Continuous spectra (also called thermal or blackbody spectra) arise from dense gases or solid objects which radiate heat. They emit radiation over a broad range of wavelengths, thus the spectra appear smooth and continuous. What is the origin of continuous spectrum? The line spectrum of an element originate when […]
Which sea has lowest salinity?
Which sea has lowest salinity? The Arctic Ocean’s What is salinity of ocean water? about 35 parts per thousand What ocean has the highest salinity? Atlantic Ocean What Happens When ocean salinity drops? Changes in salinity could also affect water currents because saltwater is denser than fresh water and sinks. Warmer air can absorb more […]
What percentage of fuel energy is actually converted to electrical energy?
What percentage of fuel energy is actually converted to electrical energy? What approximate percentage of energy in the fuel is converted to electricity? Explanation: Only 34% of the energy stored in the fuel is converted to electricity & 66% is lost. The maximum loss of energy takes place in the condenser where heat is rejected […]