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: Calculate the final temperature of a mixture of 190.0 grams of ice initially at -11.5 degrees Celsius and 282.5 grams of water initially at 92.5 degrees Celsius. Heat energy will flow from the hot water to the cold ice, until the temperature of the ice = 0. Then heat energy will flow from the water to the ice until all the ice is melted. Then heat energy will flow from the hot water to the cold water, until the temperature of all the water is the same! Since we do not know whether the hot water can melt all the ice, we better determine the temperature of the hot water after the ice is melted! At this point, all the ice has melted.