A model of (CH20)4 was created using colored beads. Carbon atoms were represented by black beads, hydrogen atoms by red beads, and oxygen atoms by blue beads. Which of the following combinations of beads shows an accurate model of (CH20)4? A 4 black, 8 red, and 4 blue.
B 1 black, 2 red, and 1 blue.
C 4 black, 6 red, and 4 blue.
D 1 black, 8 red, and 1 blue

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.

The dot diagram represents the motion of the motorcycle as it moves from left to right

Which property is expressed in distance units? o a. period o b. wavelength o c. speed o d. frequency