Spring because you get to see more than 1,500 wildflower species bloom into brilliant Colors and also because the weather is great in spring :D
True, a common cause of Pyroclastic flows is gassed expelled from a volcano during an eruption as well as dense, fast moving solidified lava pieces.
Large bodies of water heat up more slowly during the day and cool off more slowly at night then nearby land
Subsistence farmers grow an amount of food to only feed their family(s).