Which of the following accurately describes the use of fossil fuels for energy? Standard 3a

Group of answer choices

At the present rate, we will run out of fossil fuels in about 250 years.

Burning fossil fuels releases large amounts of carbon dioxide into the atmosphere.

Fossil fuels account for only 40 percent of the electricity generated in the United States.

All of the above

Add me on s. n.a. p.c. h.a. t im bores hmu

Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data

Which animal is a producer in this ecosystem