Answer: True
Explanation: Iron is magnetic
Answer:Yes,266.66 MPa
Explanation:
Given
Yield stress of material =140 MPa
Cross-section of 
Force(F)=8 MN
Therefore stress due to this Force(
)



Since induced stress is greater than Yield stress therefore Plastic deformation occurs
Answer: speed up food processing
speed up plant growth
Increase fuel efficiency
Explanation:
A catalyst simply refers to a substance that leads to an increase in the reaction rate when it's added to a substance. When the activation energy is reduced by catalysts, this.hwlpa on the speeding up of a reaction.
Therefore,the functions of catalysts include speed up food processing, speeding up plant growth and increase fuel efficiency