What things contribute to the amount of greenhouse gasses on Earth?

In which block of the periodic table is uranium (u) found? s blockd blockp blockf block

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.

Anyone who's in connections academy chemistry b have the factors that affect the rate of a reaction portfolio already done?