Which best describes why scientists need to be creative?

a. they need to be sure that the evidence backs up the conclusion.
b. they need to notice all of the evidence carefully.
c. they need to be constantly asking questions.
d. they need to think of ways to solve problems.

The answer is: c.They need to be constantly asking questions.

The scientific method is a process for experimentation that is used to explore observations.

Steps of the scientific method:

1) ask a question about something that is observed.

2) do background research.

3) construct a hypothesis, an attempt to answer questions with an explanation that can be tested.

4) test of hypothesis.

5) analyze collected data and draw a conclusion.

For example, Rutherford asked question about model of an atom.

Rutherford theorized that atoms have their charge concentrated in a very small nucleus.

This was famous Rutherford's Gold Foil Experiment: he bombarded thin foil of gold with positive alpha particles (helium atom particles, consist of two protons and two neutrons).  

Rutherford observed the deflection of alpha particles on the photographic film and notice that most of alpha particles passed straight through foil.

The correct answer is d.

Explanation:

Science is not a mechanical, routine activity. It is not subject to a rigid method. A scientific thought is all the more creative the more it moves away from the usual and routine practices in the scientific discipline in question. Scientists need to use their creativity to solve problems, since it is not always easy to come up with logical or structured answers. This allows the scientist to get out of his habitual thought to be able to understand the problem from different perspectives.

Have a nice day!

elements make up everything, and they combine to make compounds.

the answer is c

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.