Answer:
A landform is a feature on the Earth's surface that is part of the terrain. Tectonic plate movement under the Earth can create landforms by pushing up mountains and hills. Erosion by water and wind can wear down land and create landforms like valleys and canyons.
I believe the answer is Carbon dioxide, not so sure.
It is the jelly-like fluid in cell - holds all other organelles in place - it is like Jell-O. nucleus. - in both plant and animal cells - controls and directs all of the cells activities - protects a cells genetic material called chromatin - chromatin contains all the instructions for what proteins it should make - protected by the nuclear membrane
Rust is another name for iron oxide, which occurs when iron or an alloy that contains iron, like steel, is exposed to oxygen and moisture for a long period of time. Over time, the oxygen combines with the metal at an atomic level, forming a new compound called an oxide and weakening the bonds of the metal itself.
Explanation:
The experimenter alters the independent variable with the hopes of collecting data about how the dependent variable changes in response.Other variables have to be controlled so that any changes of the dependent variable are attributed to the known independent variable.
