Question

Why do objects such as table or vegetable or fruits do not get crushed by atmospheric pressure?
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Answer 1

You are correct, the 100 kPa pressure on both faces does have the potential to crush the table, provided the table does not resist such a change. But, since the table is a solid substance, it has a certain higher value of resistance to deformation, as compared to a liquid or a gas. We call this the "Modulus of Elasticity" or simply "Elastic Modulus". In simple terms, this resistance is provided due to the compact packing of particles in the material. The energy supplied by you in terms of the compressive force simply gets redistributed as vibrational energy for the particles. But mind you, this resistive force isn't infinite in magnitude. At a certain compression level, the material would yield and the table would surely deform. Rest assured, your table won't disintegrate due to atmospheric pressure, since it has been designed to take a large amount of weight.