Very short answer questions.
1. How do aquatic plants obtain oxygen.
2. What is a battery.
3. Which type of relationship is shown by lichen?
Answers
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Answer:
1. oxygen dissolve into the water by two sources
1) from plants in water 2) algae produce photosynthesis in the water they get oxygen for this.
2. battery is a device consisting one or more electrochemical cell
Explanation:
hope it will help you.
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