Steel is formed when a little bit of carbon is added to which element (the carbon strengthens and hardens the steel)

d.) the average kinetic energy of the gas particles is greater in container b because its particles move faster.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

thats a little if u want the answer just look it up on google thats what i do haha : )

thats how its supposed to be