Explanation:
i think option 4 is correct answer because itsrelated to animal not plants.
Answer:
Changing oil.
Explanation:
You need to regularly check and change your car’s oil to ensure smooth running of the vehicle and to prolong the lifespan of its engine.
Answer:
A.
Explanation:
Individual footings are the commonest, and they are often used if the load of the building is borne by columns. Typically, every column will have an own footing. The footing is usually only a rectangular or square pad of concrete on which the column is erected
Answer:
a = 1.68m/
Explanation:
Please kindly find the attached file for explanations
Answer:

Explanation:
The water enters to the pump as saturated liquid and equation is modelled after the First Law of Thermodynamics:




The boiler heats the water to the state of saturated vapor, whose specific enthalpy is:

The rate of heat transfer in the boiler is:

