Advanced level 2026 south west mock geology 1

1. The surface of the Moon is dominated by craters mainly because;

A. It lacks an atmosphere and active erosion agents

B. It has strong tectonic activity

C. Volcanism is still very active

D. It experiences frequent earthquakes

2. The high density of Terrestrial planets compared to Jovian planets is mainly due to:

A. Faster rotation speeds

B. Higher temperatures during formation

C. Greater proportion of metallic and silicate materials

D. Proximity to asteroid belt

3. Chemical weathering best demonstrates the link between Geology and Chemistry because it involves:

A. Physical disintegration of rocks

B. Chemical reactions between minerals and atmospheric agents

C. Movement of tectonic plates

D. Transport of sediments by rivers

4. Which of the following best describes a crystal?

A. Solid that has undergone chemical changes

B. A solid or liquid with well-defined chemical composition

C. A naturally occurring body with a definite arrangement of atoms

D. A rock that has crystallized with a definite shape

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Study the crystal model in (fig 1) below and answer questions 5 and 6.

(Figure 1: Diagram showing a hexagonal crystal system with a vertical c-axis and three horizontal axes $a_1$, $a_2$, and $a_3$.)

5. Identify the crystal system above.

A. Tetragonal

B. Hexagonal

C. Triclinic

D. Monoclinic

6. Which of the following correctly describes the axial relationship between the crystallographic axes on the crystal model above?

A. $a = b = c; \alpha = \beta = \gamma = 90^\circ$

B. $a \neq b \neq c; \alpha = \beta = \gamma = 90^\circ$

C. $a_1 = a_2 = a_3 \neq c$; angles between a-axes $= 120^\circ$

D. $a = b \neq c; \alpha = \beta = 90^\circ, \gamma = 120^\circ$

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7. Crystals are classified into the various systems based on one of the following;

A. Axial angles

B. Solid angles

C. Interfacial angles

D. Physical properties

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The table below (fig 2) shows the physical properties of some minerals. Study it and answer questions 8 and 9.

Mineral	Hardness	S.G.	Colour
A	7	2.7	Glassy colour
B	4	3.1	Purple
C	2.5	7.5	Silvery grey

Figure 2

8. Name the minerals A, B, C respectively

A. Gypsum, Mica, Galena

B. Quartz, Fluorite, Galena

C. Calcite, Quartz, Galena

D. Quartz, Garnet, Magnetite

9. Which of the mineral(s) A, B, C is/are (an) ore mineral(s)?

A. A and C

B. C only

C. B and C

D. A only

10. Cleavage in minerals is as a result of:

A. Minerals not well formed

B. Zones of poor atomic packing

C. Planes of weak atomic bonding that exist

D. Fractures on minerals

11. Why would an oil company be more interested in well-sorted sandstones than poorly sorted sandstones?

A. Well sorted sandstones are more colorful

B. Well sorted sandstones are too soft

C. Well sorted sandstones have better porosity and permeability

D. Well sorted sandstones contain more fossils

12. If an earthquake epicenter is far from a seismograph station, the time difference between P and S wave arrivals will be;

A. Larger

B. Zero

C. Very small

D. Constant

13. If S-waves were suddenly detected passing through the outer core, this would imply that;

A. The Outer core has become gaseous

B. The Mantle is liquid

C. The Outer core is solid

D. The Crust has melted