Some one plz it’s a timed test I need the answers

How does buring fossil fuels impact does carbon cycle? what large impact does this have on the envirnment?

Which of the following is an abiotic factor in an ecosystem? a. bacteriab. airc. niched. grass(abiotic=non-living) me !

Find the mass of the cone using the triple beam balance. a. 543.0 g b. 542.0 g c. 504.28 g d. 502.8 g select the best answer from the choices provided a b c d