Gravitational field g→​=−r2GM​where, M= mass enclosed in the closed surfaceGravitational flux through a closed surface is given by​g→​⋅dS→​=4πr2⋅r2GM​=4πGMSo Statement - 1 is correct.Statement - 2 is also correct because when the shape of the earth is spherical, area of the Gaussian surface is 4πr2. This proves inverse square law.