Jill hypothesizes that individual volcanoes produce igneous rocks with a certain chemical signature. She further hypothesizes th
at scientists could use an igneous rock's chemical signature to determine where the rock came from. What type of investigation should Jill perform to test her hypothesis? A. perform a controlled experiment on a volcano B. model the formation of an igneous rock C. collect and test rock specimens D. observe and describe a volcanic eruption
Hypothesis is referred to as an assumption or wild guess that needs to be tested to arrive at a scientifically established theory,
Here, Jill proposes a hypothesis which states that igneous rocks produced by volcanoes constitute some kind of chemical that could be used by scientists to estimate the origin of the rocks.
This hypothesis can be tested only by collecting the rock samples and testing them to arrive at a scientifically proven fact.
Carbon dioxide and water vapour concentrations will lead to change in temperatures.
Explanation:
Most of the common volcanic gases include carbon dioxide, sulphur dioxide and hydrogen sulphide along with small quantities of volatile compound and elements present such as hydrogen, helium and chloride etc.
The carbon dioxide and water vapour alter the temperature During the experiment the concentration of carbon dioxide goes up and the temperature goes down. Thus volcanic eruption often leads to global cooling.
