geography: In which city is Red Square?

Questions

A horseshoe for a full-grown Clydesdale measures more that ---------- inches from end to end and weighs about five pounds. It is more than two times as long and four times as heavy as a shoe worn by a riding horse.?

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Adult electric eels 5ft to 7ft long produce enough electricity -- 600 volts -- to stun a ----------?

Adult polar bears usually eat just the skin and blubber of a seal. They leave the meat for cubs and scavengers. One seal will sustain an adult bear for ----------?

All cows are females; the males are called ----------?