Which steps are important when designing and conducting a scientific experiment?
a) hide the results from fellow scientists.
b) identify the independent variable.
c) eliminate all dependent variables.
d) address any confounding variables.
e) form a non-falsifiable hypothesis.

b) Identify the independent variable.

d) Address any confounding variables.

e) Form a non-falsifiable hypothesis.

Explanation:

A scientific experiment is an organized and detailed series of steps which are required to validate or reject the  framed hypothesis. The following are the steps which should be included in a scientific experiment.

b) Identify the independent variable. : The independent variable is the one which can be changed or manipulated in an experiment the effect of which can be observed on a dependent variable. Independent variable is necessary for the experiment.

d) Address any confounding variables.  A confounding variable is the one which comes from the outside the changes caused by this variable exert an influence over the dependent and independent variables. This variable can bring change in the outcome of the experiment.

e) Form a non-falsifiable hypothesis.: A non-falsifiable hypothesis is the one which can be proved true on the basis of implementation of suitable methodology and research design.

the answer is c because it is most logical.

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers