Geology
The law that states that older rock layers are below newer ones
Law of Superposition
The column in which elements are most reactive.
1
Break down dead or dying organisms
decomposers
% of earth's water that is fresh
3%
This type of infection can be treated with an antibiotic.
Bacterial infection such as strep throat
These are good to determine the age of rock layers, because they were abundant and only lived a short period of time
Index fossils
The atomic number is the number of _______
Protons
the top level of the energy pyramid
apex predators
Frozen in glaciers and mountaintops
COVID-19 and the common cold are examples of this type of infection.
viral
Ice cores help determine this
Past climate
The 3 main categories of elements
Metals, Nonmetals, Metalloids
Eats plants and animals
omnivores
3 most common dissolved gases found in oceans.
CO2, N, and O2
Prokaryotic means...
Single celled organisms
Another word for a crack in a rock layer
fault
The electrons in the outer cloud layer are called____
Valence electrons
2 on a pH scale is considered to be
very acidic
The process in which an over production of algae makes water quality poor.
eutrophication
When diseases are affecting many countries it is...
a pandemic
A fossil that has been replaced with minerals and is hardened like a rock is a
petrified fossil
A metal that can be hammered into a thin sheet is_____
malleable
The difference between matter and energy in a food web
matter is cycled (can't be created nor destroyed) and energy flows from one thing to another until there is no more
The ocean has the highest, then estuaries, then fresh water...
salinity
Genetically Modifying corn to produce bigger stalks is an example of
biotechnology