Answer:
Explanation:
There are three main sources of heat in the deep earth: (1) heat from when the planet formed and accreted, which has not yet been lost; (2) frictional heating, caused by denser core material sinking to the center of the planet; and (3) heat from the decay of radioactive elements.
Answer:
Prokaryotes can be multicellular.
Explanation:
At the most basic level of classification, cells can be either prokaryotic or eukaryotic.
Prokaryotic cells are only bacteria or archaea, eukaryotic cells are fungi, protists, plants and animals.
The key difference is that eukaryotes have a true nucleus and membrane-bound organelles. Prokaryotes lack a true nucleus and membrane-bound organelles. Prokaryotes are simple and are only ever unicellular.
Answer: Hello, Contact forces are those types of forces that result when the two interacting objects are perceived to be physically contacting each other. Examples of contact forces include frictional forces, tensional forces, normal forces, air resistance forces, and applied forces.
Explanation:
Answer:
because its energy reflects its changing
Explanation:
Answer:
280
Explanation:
Each line is 20 so count till the A line and you get 280