Answer:

X- 44.5^oN and 73.7^o W

(44) Correct answer: Option (1)

If we are starting to work from the A to B on the given line, we can find following observations.

1. We find the lake in between the contour of 900 feet elevation. Therefore in the cross section, it should be indicated the depression with gentle slope. Because the lake is find within the same elevation contour line.

2. Then elevation is gradually increases from the level of 900 to 1600 feet (height difference = 700 feet). However, the contours are drawn showing the considerable space in between each of them. It gives idea that the slope does not change rapidly on its elevation.

However, the slope from X to B has rapid change of its elevation. There is same elevation different (1600 to 900 feet = 700feet) at that slope, but contours drown more densely within that same elevation deference. It means changing of the elevation is more rapid than other side of the slope (A to X). Therefore in the cross-section this slope is indicated more sharply than the other slope.

(43) Correct answer: Option (2) 250 ft/mi

Steps of the calculation

Slop (gradient) = Vertical distance/Horizontal distance

Also known as rise (vertical distance) and run (Horizontal distance)

Since contour interval is = 100m

Vertical distance = Height of the higher elevation point (C) – Height of the lower elevation point (D)

(Rise)

= 1500 – 1000 = 500m

Horizontal distance = given line represent the distance along the hill slope where it is needed to calculate the slope. According to the scale given, we have to obtain horizontal distance.

Length between C-D is 2 units (use a ruler to find out this length).

According to the scale, 1unit = 1Km. So distance between C-D is = 2Km

Slop = 500feet/2mile = 250ft/mi

(42) Correct answer: (4)

According to the diagram, we can find the contour intervals as 100 feet

The point X is located in the 1600 feet contour line and there is no other contour line within that elevation zone. Therefore height of any point can be varied in the elevation rang between 1600 to 1699 feet. So, the possible highest elevation in this zone will be 1699 feet.

This stream pattern can be identified as Trellis (or some time calls as

Espalier) according to the geological stream pattern categorization. This stream pattern has a network of parallel or sub parallel streams that is resulted due to strong structural events of geology such as tight regional folding. Tight regional folding followed by alteration of hard and weak formations of underline bedrock structure cause to form ridge and valley geomorphology similarly depicted in the diagram number 04. In such geomorphological condition, streams align themselves in the valleys parallel to ridges with minor tributaries coming almost at right angles through weathering of weak structurally control bedrock units

Important points to stress include:

There is another stream network system that named as Rectangular stream pattern which one can observe very similar to Trellis stream pattern. However, it is significant that the rectangular stream pattern tend to develop where the areas common with tectonic faults or bed rock joints. In this pattern, the tributary streams make more shape bends and enter the main stream at high angles than in Trellis stream pattern.

Based on these arguments, the rest of the options are incorrect

Correct Answer: South American Plate and the Nazca Plate (3)

The diagram illustrates that two plats are moving toward each other.  When two plates move toward one another, they form either a subduction zone or a continental collision(convergent plate margin). This depends on the nature of the plates involved. In the above diagram one plate is composed of oceanic lithosphere and the other is composed of continental lithosphere, the denser oceanic plate is subducted, often forming an orogenic belt and associated mountain range. This type of convergent boundary is similar to the Andes. Andes mountain range is formed subduction of the Nazca Plate beneath the South American Plate forming the Peru-Chile trench.

All other plates boundaries represent divergent plate boundaries. At divergent boundaries, two plates move apart from each other and the space that this creates is filled with new crustal material sourced from molten magma that forms below.

Based on these arguments, the rest of the options are incorrect.