Mary would start with a hypothesis such as, "I believe that plants with no soil will not grow because there are no nutrients coming from the soil for the plant to grow"
Then she would put the plan in place to start her experiment. She will get the same type of seeds, the same amount of water and sunlight. The only difference between the 3 plants is that one plant will have no soil, the second plant will have 1 inch of soil, the third plant will have the correct amount of soil.
She will run the experiment for 2 weeks to see whether the plants have grown and what the conclusion is. She will record how much the plants have grown every day, she will measure the height of each plant.
At the end of 2 weeks, she will gather all her data and come to a conclusion.
The west African Kingdom of Mali grew in wealth and power by controlling the trading of gold and salt.
Answer:
Major developments of transportation included toll roads, steam boats, canals railroads, textile mills, and also interchangeable parts.
Explanation:
Answer: A typical day in a dental office is seven to eight hours of patient time, and an hour break for lunch. When the patient schedule is complete, the staff still has some things to do. A final disinfecting is done, including washing the floor. All equipment is inspected and readied for the sterilizer.
Most hygienists' daily duties include removing plaque from and polishing a patient's teeth during a routine checkup, screening patients, reviewing a patient's oral health history and teaching appropriate brushing and flossing techniques. They also use X-ray machines to take pictures of the teeth and develop the film for the dentist's analysis.
Explanation:
I believe THE ANSWER IS A,D
