What is the difference between the driving frequency and the natural frequency of an oscillator? When the oscillating system starts oscillating on its own at a frequency , then this frequency is called natural frequency. But a system oscillating due to external excitation with a frequency , then this frequency is called driving frequency. What […]
When chlorine is added to water what happens?
When chlorine is added to water what happens? How does chlorine disinfection work? Chlorine kills pathogens such as bacteria and viruses by breaking the chemical bonds in their molecules. Disinfectants that are used for this purpose consist of chlorine compounds which can exchange atoms with other compounds, such as enzymes in bacteria and other cells. […]
Why is there more oxygen in the atmosphere now?
Why is there more oxygen in the atmosphere now? Oxygen levels are generally thought to have increased dramatically about 2.3 billion years ago. Photosynthesis by ancient bacteria may have produced oxygen before this time. In addition, early plants and algae began to release oxygen at a faster rate. … What would happen if there was […]
What is science advantages and disadvantages?
What is science advantages and disadvantages? Science is not intrinsically good or bad. It is a way to acquire knowledge in a systematic way. The disadvantage of new mobile phones is too many can communicate with us all at the same time. Why study hard is important? When you study hard you will be developing […]
What do gas bubbles in lava form?
What do gas bubbles in lava form? Gas bubbles formed and rose to the surface of lava which flowed freely on the surface of a young Earth. As the lava gradually solidified to form rock, these bubbles were trapped inside, forming spaces inside the rock called vesicles. What makes some magma explosive? Explosive eruptions If […]
What is ecosystem and its services?
What is ecosystem and its services? Ecosystem services, outputs, conditions, or processes of natural systems that directly or indirectly benefit humans or enhance social welfare. For example, the pollination of crops provided by bees and other organisms contributes to food production and is thus considered an ecosystem service. Which of the following is the best […]
What are the 2 types of Autotrophs?
What are the 2 types of Autotrophs? Scientists classify autotrophs according to how they obtain their energy. Types of autotrophs include photoautotrophs, and chemoautotrophs. Where do Chemoautotrophs get their energy from? Chemoautotrophs are able to synthesize their own organic molecules from the fixation of carbon dioxide. These organisms are able to produce their own source […]
How does homeostasis affect human body?
How does homeostasis affect human body? Introduction. The tendency to maintain a stable, relatively constant internal environment is called homeostasis. The body maintains homeostasis for many factors in addition to temperature. For instance, the concentration of various ions in your blood must be kept steady, along with pH and the concentration of glucose. Why is […]
What is octet rule in short?
How important are lights mirrors and lenses in our life?
How important are lights mirrors and lenses in our life? Mirrors and lenses both have the ability to reflect or refract light. This property has put mirrors and lenses in use for centuries. As of 2010, mirrors and lenses are so prevalent that most people use them every day, regardless of whether or not they […]