1. humans are part of complex ecosystems. describe a few components of
the ecosystem in which you live. in your
• define abiotic and biotic factors (1)
. give an example of a biotic factor in your ecosystem (1)
• give an example of an abiotic factor in your ecosystem (1)

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.

radon is correct hope this

it depends on how much it could carry.