The tumbleweed dispersal strategies are unusual among plants; most species disperse their seeds by other mechanisms. Many tumbleweeds (though by no means all) are ruderal species, opportunistic agricultural weeds. Tumbleweeds have been recorded in the following plant families:
The most obvious is temperature. If the air temperature is above 32Â°F snow and ice will start to melt, at or below 32Â° and it will remain frozen. Think about a popsicleâ¦ inside the freezer it stays frozen, outside it starts to melt. The amount of sunshine plays a big factor.
Best Answer: Ice melts at 0ËC, and water freezes at 0ËC. The temperature of the 10 grams of ice does not increase as it becomes 10 grams of water. As heat energy is added to the ice, the structure of the ice changes. In ice, the H2O molecules are arranged in a hexagonal crystal as shown at the website below.