Washington State is experiencing a water shortage, and Iowa has extremely high precipitation in the form of rain and snow. Match the technologies with the states that can use them to reduce the impact of natural disasters.

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

The reactions of photosynthesis occur in the of plant cell? a. mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion