Question

question 19
based on this excerpt, which two outcomes or contributions of the lewis and clark expedition are highlighted?
the expedition established clear boundaries for the louisiana purchase with foreign powers.
lewis collected scientific information about new plant and animal species.
the expedition successfully found a direct water route (northwest passage) to the pacific ocean.
lewis praised william clarks significant contributions to the expeditions success.
the report suggested that westward travel would remain dangerous for decades.

Explanation:

1. For "Lewis collected scientific information about new plant and animal species": The Lewis and Clark expedition was known for documenting new flora and fauna in the western territories, so this is a valid contribution related to scientific discovery.
2. For "The report suggested that westward travel would remain dangerous for decades": The expedition's experiences would inform about the challenges of westward travel, making this a reasonable outcome highlighted by their journey.

The other options are incorrect: The expedition did not establish Louisiana Purchase boundaries with foreign powers (boundaries were more about diplomacy/treaties later), they did not find a direct Northwest Passage (the passage wasn't a direct water route as hoped), and praising Clark is more personal than a key expedition outcome/contribution.

Answer:

B. Lewis collected scientific information about new plant and animal species, E. The report suggested that westward travel would remain dangerous for decades