Theirs letter a. I think that’s the answer.
Answer:
The correct answer is gas
Explanation:
They can also be called carbon emissions, CO2 emissions, or greenhouse gas emissions. Contaminating smoke from factories is made up mostly from burning fuels residues, and it includes solid particles and gases like the carbon dioxide, methane and nitrous oxide. These chemicals pollute the air and bring terrible consequences to health, especially respiratory disorders and diseases like cancer and brain strokes.
Cotton gin, separated cotton from seeds, and lessened the need for slave labor in cotton fields. It produced far more cotton than men separating it by hand
<span>The field of study in which developmentalists study what infants and children understand about other people's intentions, desires, beliefs, feelings, and so on is referred to as theory of mind.
</span>The term 'theory of mind<span>' was coined by US psychologist David Premack in a famous article (Premack and Woodruff 1978) .
</span><span>It denotes the ability to recognize and attribute mental states — thoughts, perceptions, desires, intentions, feelings.</span>
