What is the probability of rolling a 6, then a 5, then a 4?

'which of these statements about the scientific method is not true? all experiments must follow the same number of steps in the procedure. experiments may be repeated several times. some unexpected results can be beneficial. experimental results may or may not support the hypothesis.

Polar zones are cold and tend to be dry because of a pressure system of cold. low high

What are the three different shapes or structures shapes or structure of carbon-based molecules?