Which best describes the shape of a convection current?

Which best describes the shape of a convection current? The shape of a convection current would be circular. Convection currents are caused by the very hot material at the deepest part of the mantle rising, then cooling, sinking again and then heating, rising and repeating the cycle over and over. How are convection currents used […]

Does boiling point change with temperature?

Does boiling point change with temperature? The boiling point of a liquid depends on temperature, atmospheric pressure, and the vapor pressure of the liquid. When the atmospheric pressure is equal to the vapor pressure of the liquid, boiling will begin. Why does the temperature of ethanol not rise when boiled? As a liquid is heated, […]

Why do we need to assess students performance?

Why do we need to assess students performance? An important reason to assess student learning is to find out how well students are learning what we say we are teaching—to what degree are they accomplishing the learning outcomes we hold for them. Ongoing assessment of student learning allows us to engage in continuous quality improvement […]

How many groups are on the central atom?

How many groups are on the central atom? There are five groups around the central atom, three bonding pairs and two lone pairs. How many lone pairs are in ab3? Hint: The shape of AB3 with one lone pair on central atom can be pyramidal . if there is no lone pair of electrons present […]

What are the causes of strain?

What are the causes of strain? What causes a strain? A strain is caused by twisting or pulling a muscle or tendon. Strains can be acute or chronic. An acute strain is caused by trauma or an injury such as a blow to the body; it can also be caused by improperly lifting heavy objects […]

What type of risk factor is age?

What type of risk factor is age? Abstract. The risk of developing cardiovascular disease (CVD) is generally dependent on the presence or absence of traditional risk factors. Age is a well-known traditional risk factor, generally considered nonmodifiable. What are the two type of risk factors? Types of Risk Broadly speaking, there are two main categories […]

What are the steps of hearing?

What are the steps of hearing? The Steps of Hearing Outer Ear. Sound waves, which are vibrations, enter through the outer ear and reach the middle ear to vibrate the eardrum. Middle Ear. The eardrum then vibrates the ossicles, which are small bones in the middle ear. Inner Ear. Auditory Nerve. What is the first […]

Which is the best example of kinetic energy?

Which is the best example of kinetic energy? Kinetic Energy: Energy In Motion Any object in motion is using kinetic energy. For example, when you throw a baseball – when the baseball is “moving” that’s the kinetic energy. Moving water and wind are also examples of kinetic energy. What is the definition of kinetic energy […]

What parts of Canada are missing gravity?

What parts of Canada are missing gravity? Gravity in the Hudson Bay area and surrounding regions, including Quebec, is lower than it is in other parts of the world. For more than 40 years, scientists have tried to figure out what’s causing large parts of Canada, particularly the Hudson Bay region, to be “missing” gravity. […]

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