Question 3 unsaved a student visits the beach during a very hot day. she steps on the sand and jumps because it is too hot. which kind of heat transfer is demonstrated by the sand in this example? radiation convection conduction transmission

Apart of the periodic table is shown. a portion of the sixteenth and seventeenth columns of the periodic table is shown. column 16 reads eight oxygen, 16 sulfur, and 34 selenium. column 17 reads nine flourine, 17 chlorine, and 35 bromine. which of the following elements is less reactive than the others? bromine (br) oxygen (o) selenium (se) sulfur (s)

Pl which diagram illustrates prophase?

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.