Covalent network solids are typically brittle due to the strong covalent bonds that do not allow for easy deformation.

Ionic solids are typically brittle due to the strong electrostatic forces between the ions, which cause them to shatter when force is applied.

Liquids have a definite volume but take the shape of their container.

Liquids are generally incompressible, so compressibility is not a property associated with them.

Brittleness is not a typical property of elastomers; they are known for their high elasticity and resilience.

Liquids have a fixed volume but do not have a fixed shape; they take the shape of their container.

Metallic solids are known for their high electrical conductivity due to the presence of free-moving electrons.

All these properties change with temperature; for example, viscosity decreases with increasing temperature.

All of the above options provide evidence for evolution through common descent, showing how different species share common ancestors.

A quadratic equation has a maximum value when the coefficient of x² is negative. Here, all options have a positive coefficient, but the first option can be rewritten to show its vertex form.

A rhombus has all sides equal and opposite angles equal.

In a rectangle, the diagonals are equal in length but are not necessarily perpendicular.

In a rectangle, the diagonals are equal in length but not perpendicular.

In a rectangle, the diagonals are equal in length.

In a kite, the diagonals bisect each other but are not equal in length.

A parallelogram is defined as a quadrilateral with opposite sides that are both equal and parallel.

A rhombus has opposite sides that are equal and parallel, making it a special type of parallelogram.

A square has equal diagonals, which is a property of squares and rectangles.

Area has dimensions of M^0L^2T^-2.

Angle is a dimensionless quantity.

Angle is a pure number and has no dimensions, while force, energy, and pressure all have dimensions.

Velocity has the dimension M^0L^1T^-1.

Work has the dimension M^1L^2T^-2.

Work is defined as force times distance, and its dimensions are ML^2T^-2, which are the same as energy.

Frequency has the dimension of [M^0 L^0 T^-1] as it is defined as the number of cycles per unit time.

Angle is a dimensionless quantity and has the dimension of [M^0 L^0 T^0].

Velocity has the dimension of [M^0 L^1 T^-1], as it is defined as distance per unit time.

Energy and work both have the same dimensions of [M^1L^2T^-2]. Power has dimensions of [M^1L^2T^-3].

Energy has the dimension of [M^1 L^2 T^-2].

Energy and work both have the same dimensions of [M⁰L²T⁻²], as they are equivalent.