PL HEL PLSSS Which of the following is TRUE regarding Darwin's theory of evolution?

A. Species change over long periods of time, giving rise to new species.

B. Darwin’s views are no longer accepted by the scientific community.

C. Characteristics acquired during an individual’s life are always passed on to future generations.

D. Pure chance determines which species evolve.

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

Tom drove 206 miles in 3.9 hours. estimate his average speed.