Which of the following best describes the science of ecology?

the study of plants and animals and their physiology

the study of the environment, including climate and soil

the study of how living organisms interact with their non-living environment

none of the above

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Find the area of a parallelogram with base 15 yards and height 21 2/3

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?