Answer:
Explanation:
Most living things need food, water, light, temperatures within certain limits, and air. Living things have a variety of characteristics that are displayed to different degrees: they respire, move, respond to stimuli, reproduce and grow, and are dependent on their environment.
An age-related change in the nervous system that can adversely affect nutritional status is decreased taste perception, hearing loss and vision loss. Aging refers to a multidimensional process in humans, the process of physical, and psychological, and social changes. As a population, older adults are more prone to age-related diseases, functional impairment, and physical inability that nay interfere with the maintenance of a good nutritional status.
a) Warm air rises and cool air sinks : Convection
b) Sun rays warming a puddle : Radiation
c) An egg on a hot skillet : Conduction
d) Boiling water in a pan : Convection
e) Lava lamp : Conduction, Convection, Radiation
f) Feeling the suns heat on your neck : Radiation
g) Stepping on hot sand : Conduction
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Explanation:</h3>
Convection: The mode of heat transfer involving fluids: liquids and gases due to convection currents produced in the fluids are termed as heat transfer due to convection. The <u>dense cool air sinks,</u> air currents push the warm air upwards and thus rising warm air is an example of convection. Boiling water is similarly warm water rising and cool water sinking; the provided heat produces <u>convection currents</u>. Boiling water in a pan is an example of convection.
Conduction: Heat transfer by direct contact between substances is called conduction. An egg on a hot skillet is fried by conduction. The hot frying pan transfers the heat to the egg. The metal frying pan and egg are <u>in contact </u>with each other. Stepping on hot sand makes us feel warm since the hot sand and our feet are <u>in contact</u>. Heat gets transferred through conduction.
Radiation: A puddle getting warm due to sun rays and feeling the sun's heat on our neck is clearly heat transfer due to radiation. Sun rays are <u>electromagnetic waves</u> that are capable of transferring heat energy. The materials are in no direct contact with each other in case of radiation.
A <u>lava lamp</u> shows all three heat transfer modes in different ways. The incandescent light bulb emits light and warms the metal at the bottom of the glass tube through <u>radiation</u>. The heat transfer between the metal below the tube and the liquid inside is through <u>conduction</u>. The flow of liquids with different densities (upward and downward) inside the glass tube is due to <u>convection</u> currents generated in the liquid mixture.
During an emergency what you would usually want to do is a so-called threat and hazard analysis - C.
You would do this because you would want to observe and note which is a source of threat for you in a certain emergency situation. You would also to this to observe the possible hazards of doing a certain action/certain actions.
Answer:
Yes
Explanation:
I think the attraction in the solid is stronger than the ones in the liquid because it takes several particles to come together so it creates a solid. Therefore it creates a stronger attraction than the liquid since the liquid dosnt have as much mass as the solid. (not quite sure though)