Some common elements that are gaseous state at room temperature are:
Oxygen
Nitorgen
Fluorine
Chlorine
Hydrogen
Helium
In addition, all of the elements in group VIII are gases too, they have an octet of electrons (complete outer electron shell) , they're really stable and therefore they're called noble gases. Some examples from group VIII include helium, krypton, xenon etc.
Substance exist as gases in room temperature is due to their boiling point, where is it lower than the room temperature (usually around 25°C). If their boiling point is higher than room temperature, they should exist as either solid or liquid, which is how the majority of the elements in the periodic table is.
Answer:
Fossils
Explanation:
no explanation sorry thats the answer ok? ok?
It is the gypsum. Gypsum is a delicate sulfate mineral made out of calcium sulfate dihydrate, with the synthetic recipe CaSO. 4· 2H2O. It is broadly mined and is utilized as a compost, and as the principle constituent in many types of mortar, writing board chalk and wallboard.
Your answer is D. Organism
Answer:
So if there were no green plants, no food will be available for the other living organisms. ... During respiration, organisms use this oxygen for releasing energy. Without these 2 important aspects of food and oxygen, it would be difficult for life to survive on earth.
Explanation:
