Morphometry of Drainage Basins

Options:

1. The angle between the upstream and downstream directions of a stream.
2. The angle between the average flow directions of two stream segments meeting at a junction point.
3. The angle between the valley side slope and the gradient of the master stream.
4. The angle between the tributary and the main channel.

Correct Answer

Options:

1. It decreases as the order of receiving stream increases.
2. It increases as the order of receiving stream increases.
3. It remains the same regardless of the order of receiving stream.
4. It is not related to the order of receiving stream.

Correct Answer

Options:

1. If the slope of the valley side is steep, the tributary joins at almost right angles; if it is not steep, the tributary joins at a small angle.
2. If the slope of the valley side is not steep, the tributary joins at almost right angles; if it is steep, the tributary joins at a small angle.
3. The slope of the valley side has no effect on the angle at which a tributary joins a master stream.
4. If the slope of the valley side is steep, the tributary joins at a small angle; if it is not steep, the tributary virtually parallels the main channel, joining it at a small angle.

Correct Answer

Options:

1. Because it is not related to any other watershed characteristi
2. Because it is only correlated with the spatial distribution of a few attributes.
3. Because almost every watershed characteristic is correlated with it.
4. Because it is not related to any significant watershed characteristi

Correct Answer

Options:

1. By measuring the areas of all the stream segments of each order.By including all the ground surface that directly feeds the first-order segments in the areas of first-order basins.
2. By measuring the areas of all stream segments and inter-basins.
3. By measuring the areas of all the tributaries that join the main channel at a small angle.
4. None of the above

Correct Answer

Options:

1. Pear shape
2. Circular shape
3. Elongated shape
4. Indented shape

Correct Answer

Options:

1. Compact, elongated, and indented
2. Circular, elongated, and indented
3. Circular, compact, and indented
4. Circular, compact, and elongated

Correct Answer

Options:

1. A measure of the basin’s elongation ratio.
2. A measure of the basin’s circularity.
3. A measure of the basin’s are
4. A measure of the basin’s perimeter.

Correct Answer

Options:

1. A measure of the basin’s are
2. A measure of the basin’s perimeter.
3. A measure of the basin’s elongation.
4. A measure of the basin’s circularity.

Correct Answer

Options:

1. A method to calculate the basin’s perimeter.
2. A method to calculate the basin’s are
3. A method to calculate the basin’s elongation.
4. A method to compare the basin with a Lemniscate curve.

Correct Answer

Options:

1. Basin length is directly proportional to basin are
2. Basin perimeter is directly proportional to basin are
3. Basin length is directly proportional to basin perimeter.
4. Basin perimeter is inversely proportional to basin are

Correct Answer

Options:

1. The proportion of increase in mean basin areas between two successive orders.
2. The proportion of increase in basin perimeter between two successive orders.
3. The proportion of increase in stream length between two successive orders.
4. The proportion of increase in basin width between two successive orders.

Correct Answer

Options:

1. The law stating that the basin area becomes cumulative with increasing orders within the basin.
2. The law stating that the mean basin areas of successive higher stream orders tend to form geometric series.
3. The law stating that the highest order stream represents the total area of the whole basin.
4. The law stating that the mean basin areas of successive higher stream orders decrease with increasing orders within the basin.

Correct Answer

Options:

1. The mean area of the 1st order basin.
2. The total area of all stream segments of the same order.
3. The constant area ratio.
4. The mean basin area of successive higher stream orders.

Correct Answer

Options:

1. The correlation between basin order and mean basin are
2. The correlation between basin area and stream length.
3. The correlation between basin area and basin order.
4. The correlation between stream order and stream length.

Correct Answer

Options:

1. When the area ratio within different orders of a particular basin becomes more or less stable.
2. When the basin has a high number of gully segments.
3. When the basin has a low number of stream orders.
4. When the area ratio within different orders of a particular basin is not stable.

Correct Answer

Options:

1. A law that states that all parts of an organism’s body increase proportionally with time.
2. A law that states that the relative growth of an organ becomes a constant fraction of the relative rate of growth of the whole body of the animal or plant.
3. A law that compares measurable properties of a drainage basin, such as stream lengths and basin areas, to the organs of a growing animal or plant.
4. A law that shows the linear relationship between the mean gully length and mean basin are

Correct Answer

Options:

1. It validates the law of allometric growth.
2. It shows that the relation between mean gully length and mean basin area is not tenable.
3. It shows that the linear relationship between mean gully length and mean basin area is not validate
4. It demonstrates the uniform geological structure and climate.

Correct Answer

Options:

1. The measure of the number of stream segments in a drainage basin.
2. The measure of the number of streams per unit are
3. The measure of the length of a stream.
4. The measure of the depth of a stream.

Correct Answer

Options:

1. By counting the number of stream segments in a drainage basin.
2. By counting the number of stream segments in a square mile/kilometer gri
3. By measuring the length of each stream in a drainage basin.
4. By measuring the depth of each stream in a drainage basin.

Correct Answer