The liverworts are a group of simple plants which are flowerless, spore producing plant.Their spores are produced in small capsules.
An example of liverwort is :
b. Marchantia
The brownish-red powder on iron is called rust. It is formed by the reaction of iron and oxygen in the presence of water or air moisture. It is called oxidizing or rusting due to exposure to water and air.
The reactants are oxygen and iron the products are carbon dioxide and water and the process is oxidization.
Answer:
food, water, and breathing space
Explanation:
