For each of the following research ideas: a. Identify the Independent Variable (IV) b. Identify the Dependent Variable (DV) c. Write a null hypothesis d. Write an alternative/research hypothesis 1. A researcher would like to test whether stress plays a role on a person’s ability to identify faces. 2.Your school would like to find out if students who eat more carbohydrates for breakfast do better at school. 3. A medical lab would like to test if caffeine can increase one’s sense of smell. 4. An industrial psychologist would like to see if one’s ability to solve problems changes with the time of day. 5. A sports psychologist wants to determine if an athlete’s performance can be improved with positive feedback. 6. A clinic wants to determine whether drug treatment or therapy is the better treatment for depressed patients. 7. A developmental psychologist would like to see if a massage could help to lower anxiety in children. 8. An environmental psychologist would like to see if the height of a ceiling has something to do with the mental health of office employees.

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !

answer: i feel like it would be 3

explanation: