Plutonium is much rarer in nature than uranium and is more commonly used for bombs rather than as reactor fuel. Like uranium, it comes in various isotope forms, with plutonium 239 the most commonly used. It is mixed with the much more unstable plutonium 240 to generate power.
It's my understanding that a horse's knees close around age 2- 2 1/2. My gelding JUST turned 3. A couple days ago in fact. Will a horse's knees almost certainly be closed by that age?
Strangles can occur in any age horse, although horses between 1 and 5 years old are affected more frequently. The disease is highly contagious, with 50 percent or more of exposed animals becoming sick. Horses become infected with strangles after inhaling or ingesting the bacteria.