Rowan berries are generally considered non-poisonous for humans when consumed in small quantities. However, they can cause mild stomach upset or diarrhea if eaten in large amounts. It is important to note that some people may have allergies or sensitivities to certain compounds in rowan berries, so it is best to consume them in moderation. Additionally, rowan berries are toxic to some animals, so it is important to keep them away from pets. **

Yes, parts of poisonous plants can sometimes be treated to make them non-toxic. This process usually involves specific methods such as drying, cooking, or fermenting the plant parts to break down or remove the toxic compounds. However, it is important to note that not all poisonous plants can be made safe for consumption through treatment, and caution should always be exercised when dealing with potentially toxic plants. Consulting with a knowledgeable expert or botanist is recommended before attempting to treat any poisonous plant for consumption. **

Yes, there are certain varieties of apples that contain toxic compounds in their seeds, such as cyanide. However, the amount of cyanide in apple seeds is typically very small and would need to be consumed in large quantities to be harmful. As for trees with poisonous apples, there are no known species of trees that naturally produce poisonous apples. **

Peanuts are not inherently poisonous to humans. However, some people may have severe allergic reactions to peanuts, which can be life-threatening. It is important for individuals with peanut allergies to avoid peanuts and products containing peanuts to prevent an allergic reaction. Overall, peanuts are safe for the majority of the population to consume. **

Yes, nutmeg can be poisonous if consumed in large amounts. Ingesting high doses of nutmeg can cause symptoms such as hallucinations, nausea, dizziness, and even seizures. It is important to use nutmeg in moderation as a spice in cooking and baking, rather than consuming it in large quantities for recreational purposes. **

Lava itself is not poisonous because it is molten rock. However, the gases released by lava, such as sulfur dioxide and carbon dioxide, can be toxic if inhaled in large quantities. Additionally, contact with lava can cause severe burns and injuries due to its extremely high temperature. It is important to exercise caution and avoid direct contact with lava flows to prevent any harm. **

Something is considered poisonous if it contains substances that can cause harm or death when ingested, inhaled, or touched. Poisonous substances can range from chemicals and plants to certain animals and foods. It is important to be cautious and knowledgeable about potential poisons in order to prevent accidental exposure and harm. **

Ash itself is not inherently poisonous, as it is primarily composed of minerals and other non-toxic substances. However, ash from certain materials or sources can be harmful if ingested or inhaled. For example, ash from burned materials like treated wood, plastics, or chemicals can contain toxic substances that may be harmful to humans and animals. It is important to be cautious when dealing with ash and to avoid ingesting or inhaling it, especially if its source is unknown. **