Antonio’s teacher challenged the class to create an experiment that tests how air temperature affects plant growth. Antonio’s group created their experiment using two green bean plants and one lima bean plant. During the experiment, the green beans were placed in direct sunlight. The lima beans were placed in direct sunlight with an aluminum cover. The table shows the proposed experimental design. The teacher handed back their assignment and asked the group to correct an error in their experimental design. What correction needs to be made?

Their experimental procedure was too advanced.

They should have only one tested variable.

They should have included another type of bean.

There was no outcome variable.

Air pressure is measured in pascals. for a professional american football game, the ball should be inflated to about 90,000 pascals. scientists studied the effects of air temperature on the pressure inside american footballs by taking these steps: 1. prepare 100 footballs. 2. measure each football's air pressure. 3. divide footballs into 10 groups. 4. place the groups in different lockers cooled to different air temperatures. 5. after 12 hours, remove the footballs from lockers. 6. measure each football's pressure again. 7. compare the new pressures to the starting pressures. what two terms best describe the variable "air pressure inside the football" in this experiment? independent, qualitative independent, quantitative dependent, qualitative dependent, quantitative