Which of the following is a true statement about non-tidal marshes? They contain salt-water They are inhospitable to most plant and animal types, so biodiversity is limited They occur in poorly draining low places and along boundaries of freshwater sources Their water levels are influenced by tidal patterns

## Step 1<br />The problem is asking us to identify the correct statement about non-tidal marshes. Non-tidal marshes are a type of wetland that is not influenced by tidal patterns. They are typically found in poorly draining low places and along boundaries of freshwater sources.<br /><br />## Step 2<br />Let's evaluate each option:<br /><br />1. "They contain salt-water": This statement is incorrect. Non-tidal marshes are freshwater wetlands, not saltwater.<br /><br />2. "They are inhospitable to most plant and animal types, so biodiversity is limited": This statement is also incorrect. Non-tidal marshes are known for their high biodiversity, with a variety of plant and animal species.<br /><br />3. "They occur in poorly draining low places and along boundaries of freshwater sources": This statement is correct. Non-tidal marshes are typically found in poorly draining low places and along boundaries of freshwater sources.<br /><br />4. "Their water levels are influenced by tidal patterns": This statement is incorrect. Non-tidal marshes are not influenced by tidal patterns, unlike tidal marshes.