Determine if each of the following statements is a well-written, testable hypothesis. Explain your answers. a. If the soil is at a pH level of 8, then the plants will have the higher yield.

b. If I give the dog a treat, then she will be happy.

c. When you miss a meeting, everyone else is sad.

d. If I run 5 miles, then my heart rate will increase.

Ecosystems involve living organisms interacting with non-living things in a productive way; how is photosynthesis an example of this? answer, i will give brainiest to first person to get it right.

How do accessory pigments chlorophyll?

Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.