A puddle of water on a sidewalk evaporates in the hot afternoon sunshine. Complete the following statement to describe what is happening. "Before the phase change, thermal energy is by the water, causing its temperature to -absorbed;decrease
-absorbed;increase
-released;decrease
-released;increase

The chemical bond connecting one nucleotide with the next one along the nucleic acid chain is called a

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.

Which statement is true about the model of the electromagnetic spectrum a: it change the frequencies of light. b: it compare wavelengths of light. c: the color of light waves can be changed using the model. d: the intensities of light waves can be decreased using the model.