Why is seed dispersal important? attracts pollinators

spreads seeds all around

give animals food

gives animals shade

What is the temperature of one mole of helium gas at stp?

Which type of precipitation would most likely form when the surface air temperature is slightly below freezing and the air temperature increases as you move upward away from the ground?

Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?