What are two types of organic farming? There are basically two types of organic farming: pure organic farming and integrated organic farming. With pure organic farming, the method includes the use of manures and biopesticides with complete avoidance of inorganic chemicals and pesticides. What is organic farming list its advantages? Compared with conventional agriculture, organic […]
Can something be heavy but not dense?
Can something be heavy but not dense? No. “Density” is the mass of an object divided by its volume. “Weight” is the mass-of-the-object multiplied by the acceleration-due-to-gravity. If you will compare the weight of same volume of two different materials having different density than denser material will have more weight than the less dense material. […]
What is 21-cm radiation and why is it useful to astronomers?
What is 21-cm radiation and why is it useful to astronomers? Why is it useful for studying the interstellar medium? With its long wavelength, the 21-cm radiation can easily pass through dust clouds without being scattered. Therefore we can detect clouds of cold hydrogen gas throughout the Galaxy, and determine their temperature and density. What […]
Which material Cannot be deposited by CVD method?
Which material Cannot be deposited by CVD method? Step coverage is better in LPCVD. Gas convection can be important in APCVD…. A Insulators can be deposited by CVD B Metals can be deposited by evaporation C Tungsten is usually deposited by evaporation D Metals can be deposited by sputtering E Insulators and metals can be […]
How did astronomers identify technology?
How did astronomers identify technology? The astronomers make use of technology that detects radio waves, which identified a pulsar at the center of the nebula, this pulsar is a magnetized rotating compact star which is known with it’s electromagnetic emissions. Which tools are currently used to collect images during space exploration? Terms in this set […]
What is the dirtiest fuel in the world?
What is the dirtiest fuel in the world? Tar Sands How much does gasoline cost in UK? For comparison, the average price of gasoline in the world for this period is 1.04 U.K. Pound Sterling….United Kingdom Gasoline prices, 19-Apr-2021. United Kingdom Gasoline prices Liter Gallon USD 1.772 6.708 EUR 1.469 5.561 Why is gas so […]
What is potential difference class 10th?
What is potential difference class 10th? Potential difference between any two points is defined as the amount of work done in moving a unit charge from one point to another. Is voltage and potential difference same? Electric potential difference, also known as voltage, is the external work needed to bring a charge from one location […]
Why is spectrum of seven Colours formed when sunlight passes through a prism?
Why is spectrum of seven Colours formed when sunlight passes through a prism? A rainbow has seven colors because water droplets in the atmosphere break sunlight into seven colors. A prism similarly divides light into seven colors. When light leaves one medium and enters another, the light changes its propagation direction and bends. What is […]
At what angle from horizontal Must we keep the mirror?
At what angle from horizontal Must we keep the mirror? According to the laws of reflection, angle of incidence is equal to angle of reflection. What should be the angle between two plane mirrors? 90 degrees What will be the angle between the incident ray & reflecting surface when the angle of incidence is 60? […]
Which are most likely to be used during a routine visit to the dentist?
Which are most likely to be used during a routine visit to the dentist? radiopharmaceuticals and X-rays. What is the numbing agent dentists use? Novocaine is the brand name for a local anesthetic called procaine. It is a local anesthetic medication that is used to numb a particular part of the body. It is most […]