The castor bean plant (Ricinus communis) was discovered in 1970 to be poisonous. The plant's seeds contain ricin, a deadly toxin that can be fatal if ingested in even small amounts.
Several are such as lead, but mercury (the only metal that is a liquid at room temperature) is very poisonous.
Lead is an element that is poisonous if ingested, causing a variety of health issues. It has been replaced in many applications, such as in paint and gasoline, with less harmful substances to reduce the risk of lead exposure and poisoning.
it used to be known as glucinium (?) because it was sweet. Unfortunately for the few scientist who discovered this, beryllium is also poisonous.
Soft, malleable, poor conductor, highly poisonous, high density, resistant to corrosion.
Lead use to be used in plumbing, and eve-troughs and breather pipes, and as a paint pigment. But when they discovered lead to be rather poisonous use of it has been discontinued.
Alfred Cobblestone discovered the pomegranate. He thought it was a tomato, when the people thought they were poisonous, but he ate them and then he realized they weren't tomatoes. So he named them pomegranates.
Alfred Cobblestone discovered the pomegranate. He thought it was a tomato, when the people thought they were poisonous, but he ate them and then he realized they weren't tomatoes. So he named them pomegranates.
No, they have graphite. Soon after people realized that lead is very toxic and poisonous, they removed it from most writing devices and such.
It can be poisonous.
it affected their lungs from the poisonous gases which lead to even more desieses.
People around the world don't put lead in lead pencils or any pencils! They put something called graphite. They use graphite because lead is poisonous. If a peice of lead touched you, you would have poison in you. Then eventually you would die. So that is what people put in lead.
It is poisonous
Lead is a soft heavy metal that is poisonous when ingested or inhaled. Its compounds, such as lead oxide and lead acetate, can be harmful to the environment and human health. Lead poisoning can cause a range of symptoms, including abdominal pain, neurological issues, and developmental delays in children.
Lead is known from prehistoric times.
HCN gas
The castor bean plant (Ricinus communis) was discovered in 1970 to be poisonous. The plant's seeds contain ricin, a deadly toxin that can be fatal if ingested in even small amounts.