Section A: MCO (10 Marks) 1. Which of the following does not explain why the windows of the science laboratory should be
opened?
A. To let fresh air into the laboratory.
B. To prevent the laboratory from becoming too hot when all the Bunsen burners are on
C. To prevent accumulation of irritating fumes and gases.
D. To allow teachers to check on misbehaving pupils.​

currents is the correct answer.

the correct answer should be false

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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.