If two waves interact in destructive interference, which of the following will be true regarding the new wave formed? A. The new wave will produce a higher-pitched sound than the two original waves.
B. The new wave will produce a lower-pitched sound than the two original waves.
C. The new wave will produce a louder sound than the two original waves.
D. The new wave will produce a quieter sound than the two original waves.

primary succession begins with a bare rock and ends with a forest secondary succession begins after a natural disaster where there is a temporary setback after a forest fire or local destruction, but the surrounding area can fill in

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explanation: bc blah

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link:

events in order:

1.       vishnu schist

2. zoroaster granite

3. bass limestone

4. hakatar   shale

5. igneous intrusion

6. shinumo quartzite

7. dox sandstone

8. tapeats limestone

9. bright angel shale

10. muav limestone

11. temple butte limestone

12. redwall limestone  

nonconformity

answer: the unkar group shows angular unconformity because the layers are turned at angle.

unconformity

answer: specifically the angular unconformity occurs between the cambrian and precambrian rocks. the dox sandstone, shinumo quartzite, hakatar shale, and bass limestone have been filled. an angular unconformity occurs between the cambrian and precambrian rocks. the dox sandstone, shinumo quartzite, hakatar shale, and bass limestone have been filled.

disconformity

answer: the disconformities aremarked irregular lines between the sedimentaryrocks layers.