The majority of species extinctions are caused by O a
OO
Oc
giant meteors hitting the planet
natural disasters such as tornadoes
human practices such as hunting, overfishing, and deforestation
an imbala
imbalan in the ecosystem
Od

"a scientist studying a whale and its surroundings would need to understand the structure of atoms in case something was negatively affecting the whale or its surroundings."

explanation:

this was from the link provided:

i tried the eyeshadow trick you told me about and it worked so good i i did a yellow going into orange colors and it was bright and you could see it on my eyes

the answer is:

carbon dioxide