Which of the following statements is true about the sun's layers? a) There are three interior layers, one surface layer and two atmosphere layers; all layers are gaseous.

b) There are three interior layers, one surface layer and two atmosphere layers. All the layers but the metallic core are gaseous.

c) There are six layers: three interior layers, all solid, a surface layer and two gaseous layers.

d) There are six layers: two interior layers and four outer layers. All layers are gaseous.

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.