Which best explains why it is important to conserve energy resources? Group of answer choices

As the use of fossil fuels increases, it becomes more difficult to find alternative energy resources.

They are all renewable.

As the most readily available resources run out, it becomes more difficult to obtain additional resources from the earth.

They are all nonrenewable.

Metamorphic rocks are formed when sedimentary or igneous rocks are subjected to heat or pressure and recrystallize without melting. which of the following rocks results from the metamorphism of limestone? a. granite b. slate c. sandstone d. marble

The activity of the modern sample is 1.10 bq . how long does that measurement take?

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.