Conservationists occasionally light forests on fire to control wild fires. By occasionally burning material (like leaves, branches, etc), those materials cannot build up and cause large and uncontrollable fires later.
Answer:
i think its like this ok
a) its one of number one so put d) the other number one
Explanation:
there are the one the oly i understand :) hope you help in something
<span>In order to survive, cells must satisfy some basic needs such as oxygen, water, nutrients, waste removal, and maintaining of homeostasis. Oxygen and nutrients are necessary for different processes inside the cell. For instance, cellular respiration uses glucose and oxygen to form energy in the form of ATP. Water is important for different chemical reactions, as well. Also, s the result of different processes, waste is produced and it is important to remove it from the cell. Finally, it is important that cell and whole body conditions do not vary so much and that homeostasis is maintained.</span>
An isolated system is a system in which neither matter nor energy can move in or out when a chemical reaction takes place.
