Question

1. explain how human activity may have an effect on atmospheric co₂.

Explanation:

Human activities like burning fossil fuels (coal, oil, gas) release large amounts of \(CO_2\) stored underground. Deforestation reduces the number of trees that absorb \(CO_2\) through photosynthesis. Industrial processes also contribute to \(CO_2\) emissions.

Answer:

Human activities such as burning fossil fuels (e.g., coal, oil, and natural gas) for energy in power plants, transportation, and industrial processes release large - scale \(CO_2\) that was previously sequestered in the Earth's crust. Deforestation, whether for agriculture, urbanization, or logging, reduces the number of trees. Since trees absorb \(CO_2\) during photosynthesis, fewer trees mean less \(CO_2\) is removed from the atmosphere. Additionally, some industrial activities (e.g., cement production) directly emit \(CO_2\) as a by - product of chemical reactions.