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Answer: answer no. 1
thermal conduction is the transfer of internal energy by microscopic collisions of particles and movements of electrons within a body. colliding particles which include molecules, atoms and electrons, transfer disorganised microscopic kinetic and potentially energy,jointly known as kinetic energy.
Answer:
(a)The process of transferring of heat from the hotter end to the colder end of an object is known as conduction.
(b)Conduction:
The heat transfer takes place due to the difference in temperature.
Radiation:The heat transfer occurs in all objects with a temperature greater than 0.K.
Conduction:conduction is the transfer of heat energy by direct contact,
Radiation:radiation is the transfer of energy with the help of electromagnetic waves.
Conduction:In conduction, heat transfer takes place between objects by direct contact.
radiation:In radiation, heat transfer occurs through electromagnetic waves without involving particles.
(c)Natural fibers are the fibers which are made by using natural source materials such as plants and animals. The synthetic fibers are the ones that are made from chemical synthesis.
(d) digestion is the process by which food is broken down into simple components that can be used as nutrients or can be excreted by the body.
(e) mouth, stomach, small and large intestines, anus are the four parts of alimentary canal