Read the text of the Lesson carefully and decide if the statements are true (T) or false (F). Correct the false ones.

Placing logs in the brook and driving on them is not a good option.
1. T
2. F
Spruce branches are often used to reinforce the edges of a watercourse.
1. T
2. F
When choosing a crossing site, the quality of the brook bottom is not a key issue.
1. T
2. F
Crossing a brook by a heavy machine results in deep tracks on each side, fine soil particles and humus washed into the brook.
1. T
2. F
A corduroy bridge is build using the most valuable logs.
1. T
2. F
Poor planning of a trail system can have long-lasting consequences, including high risks of nutrients and heavy metals leaching
1. T
2. F
The types of damage that can be caused by harvesting operations adjacent to watercourses and ditches can be divided into four categories.
1. T
2. F
Damage of a brook ditch results in reduced water quality in a somewhat shorter timeframe.
1. T
2. F
The forwarder operator is not obliged to remove all material from the crossing when the work is finished.
1. T
2. F
When the ground by the crossing is less solid it should not be protected.
1. T
2. F