Answer:
Air contains about 21 percent oxygen, and most fires require at least 16 percent oxygen content to burn. Oxygen supports the chemical processes that occur during fire. When fuel burns, it reacts with oxygen from the surrounding air, releasing heat and generating combustion products (gases, smoke, embers, etc.).
Explanation:
They range in size from microscopic plankton up to forms a few meters long.
Answer:
The movement and interaction of tectonic plates helps to explain many of Earth's features. Interpret data showing topography, the age of the sea floor, the location of volcanoes, and the location of earthquakes to predict the location and type of plate boundaries in a region.
Explanation:
The main role of DNA is the long term storage of information. They contain the genetic instructions used in the development and functioning of all known living organisms.
<span>Radiolarians have a cell wall made of
.....
According to </span>
https://microbewiki.kenyon.edu/index.php/Radiolaria <span>
"</span>
Radiolaria are unicellular organisms. They have mineral skeletons (tests) that are composed
of silica. The tests are formed through the absorption of silicon
compounds. This skeleton is covered with cytoplasm, which is withdrawn
if the organism is disturbed."
There cell wall is made of according to another website
...
<span> "Radiolaria....have cell walls made up of thick cellulose walls"
Hope this helps:)
@SamSamySamantha
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