Hydrogen and Oxygen will have ___ properties after they bond to become water.
A. Only the dominant element's
B. completely new
C. both of their original
D. the same

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?

In which squares should the phrase "green pods" appear a) a and d b) b and e c)a,c, and d d)a,b,c,d and e

Which of the following is an example of competition a. the leaves of a tree prevent a small shrub from getting sunlight. three species of birds feed a different heights in the same tree. b. three species of birds feed at different heights in the same tree c. zebra and giraffe’s feed on different grassland plants d. cats living in two different homes eat the same brand of cat food.