Which type of cartilage is found at the ends of long bones?

The parabola with directrix $x+2y-1=0$ and focus $(1,0)$ is

Which one of the following orders is correct for the bond dissociation energies of halogen molecules?

Which of the following statements is correct?

Let $\alpha, \beta$ be such that $\pi < \alpha - \beta < 3\pi$. If $\sin \alpha + \sin \beta = -\frac{21}{65}$ and $\cos \alpha + \cos \beta = -\frac{27}{65}$,then the value of $\cos \frac{\alpha - \beta}{2}$ is

When a horse pulls a wagon,the force that causes the horse to move forward is the force: