What's the Kennection? #217

In 1994, the Browns' Tom Tupa scored the first two-point type of what play in NFL history?

What key, originally used to switch modes on teletype machines, is usually found at the upper left of a computer keyboard?

The reaction between zinc and manganese dioxide powers the "alkaline" type of what household item?

What Booker Prize-winning bestseller by A. S. Byatt is not about an exorcist, but rather about two Victorian poets in love?

Owls make up a "parliament" and ravens an "unkindness," but what is the collective name for a flock of crows?

What's the "Kennection"?