(Originais Teachy 2023) - Question Easy of Sciences

When the leaves fall from the trees, they begin to decompose on the forest floor. This decomposition process is very important for nature, as it releases nutrients that were stored in the leaves back into the soil. Fungi and bacteria play a key role in this stage of the life cycle, acting as decomposers. An experiment was conducted in a forest area where leaves from different trees were collected. Each set of leaves was placed in a separate container and kept under suitable conditions to observe decomposition. The experiment lasted several weeks and the students regularly noted the changes that occurred. At the end of the experiment, they compared the decomposition state of each set of leaves. Based on the natural cycle, the importance of decomposition, and the described experiment, what conclusion can be drawn about the role of the fungi and bacteria observed in the decomposition of leaves in the forest?

Sometimes we can see people who eat a lot or very little and realize they are not healthy. This may be a sign that they have an eating disorder, such as obesity, which is when a person is overweight from consuming more food than their body needs. On the other hand, anorexia is a disorder in which the person is afraid of gaining weight and eats very little, which can harm their health. People with these disorders need help to learn how to have a balanced and healthy diet. Thinking about taking care of our body, write about what a balanced diet is and why it is important to maintain our health. Then, explain how families, schools, and governments can help children and adults learn to eat healthily and avoid eating disorders such as obesity and anorexia.

Plants are very important living beings for our world, and each part of them has a special function. The root helps the plant stay in place and take water from the soil, the stem holds the plant up and carries water to the leaves, the leaves use sunlight to make food, the flower attracts insects and animals to aid in reproduction, the fruit protects the seeds and helps the plant spread. With that in mind, choose a plant you know, like a flower you have at home or a tree from school, and describe a function for each part of that plant: root, stem, leaf, flower, and fruit. Explain why each of these parts is important for the plant to live and grow healthily.