How do humans do photosynthesis? Human photosynthesis doesn’t exist; we must farm, slaughter, cook, chew and digest — efforts that require time and calories to accomplish. As the human population grows, so does the demand for agricultural goods. Not only are our bodies expending energy, but so are the farm machines we use to make […]
What is the difference between a physical change and a chemical property?
What is the difference between a physical change and a chemical property? A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. Physical properties include color, density, hardness, and melting and boiling points. A chemical property describes the ability of a substance to […]
How did changing ideas on the role of the individual affect the way?
How did changing ideas on the role of the individual affect the way? How did changing ideas on the role of the individual affect the way scientists began to understand the physical world? Greater emphasis on the role of the individual encouraged scientists to consider explanations of the natural world outside of scripture or traditional […]
Why do I have a voltage reading when light switch is off?
What does it mean if a mineral has a hardness of 1 on the Mohs scale?
What does it mean if a mineral has a hardness of 1 on the Mohs scale? The Mohs’ hardness scale was developed in 1822 by Frederich Mohs. Talc (1), the softest mineral on the Mohs scale has a hardness greater than gypsum (2) in the direction that is perpendicular to the cleavage. Diamonds (10) also […]
How do you play maths game?
Who killed Myrtle?
Who killed Myrtle? George is sure that Gatsby killed Myrtle, so George shot Jay Gatsby. No one else can blame anyone for George’s death but himself. The person responsible for Myrtle Wilson’s death is Daisy Buchanan. Daisy is responsible for driving a car that hit Myrtle Wilson on the side of the road. Why is […]
What are the examples of positive feedback mechanism?
What are the examples of positive feedback mechanism? The release of oxytocin from the posterior pituitary gland during labor is an example of positive feedback mechanism. Oxytocin stimulates the muscle contractions that push the baby through the birth canal. The release of oxytocin result in stronger or augmented contractions during labor. What are examples of […]
How many mm is 2.5 cm?
What is the state of refrigerant in the liquid line?
What is the state of refrigerant in the liquid line? When the refrigerant exists in a liquid and vapor state, it is in a condition called saturated. Superheat is measured at the places where the only vapor is present (the suction line) and is the difference between the saturation temperature and the measured temperature. Is […]