Rate the following argument fragment on its writing, argument, and language skills:
Lead: The planet Venus, is called Earth's "twin" when in reality they are only the same size. Venus is a dangerous planet, our spacecrafts haven't been able to land in three decades. The author of this article gives us evidence that scientists are still trying to find a way to land on its surface. Why? They know it's a dangerous misson, they know somebody could get hurt.

Score: 1