Yes.
Yes.
Okay, let's take the basics: There is no such thing as "copper sulfate baking powder", as it would be poisonous. I can think of no way to relate elemental nickel to the fictitious "copper sulfate baking powder".
A poisonous mushroom is a poisonous mushroom
A poisonous mushroom is a poisonous mushroom
Yes. It consists of nickel, nickel, and nickel.
no its not poisonous, it only bites
non-poisonous
They are not poisonous.
They are not poisonous.
no, it is not poisonous
Yes, eye shadow can be poisonous to some living things. It is not poisonous to humans, but it can be poisonous to animals.
Canna bulbs are not poisonous. Calla lilies are poisonous.