A scientist hypothesizes that the temperature at which an ostrich's egg is incubated will determine whether the ostrich will be male or female. What is the independent variable of this experiment? A. Scientist
B. Incubator
C. Temperature
D. gender of the ostrich

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

Apropane torch is lit inside a hot air balloon during preflight preparations to inflate the balloon. which condition of the gas remains constant

Can anyone answer these questions? ? i need it before 1: 00pm today