What is the most basic building block of matter?

the electron

the proton

the quark

the atom

2nd question:
which part of an atom has a negative charge?

neutron

nucleus

proton

electron

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)

How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.