Please help quick

Which of the following statements provide evidence to support the big bang theory? Select the two correct answers.(1 point)

The universe began as a very high density singularity.

Dark matter makes up the majority of matter in the galaxy.

Small spiral galaxies become larger elliptical galaxies when they collide.

The ratios of hydrogen and helium in the universe match those of the early universe.

'which of these statements about the scientific method is not true? all experiments must follow the same number of steps in the procedure. experiments may be repeated several times. some unexpected results can be beneficial. experimental results may or may not support the hypothesis.

Cpr, or cardiopulmonary resuscitation, is a first-aid technique to save lives. it involves compressions of the patient's chest cavity. which description is the best description of the functions of chest compressions in cpr? chest compressions are done to pump the heart. chest compressions are done to strengthen the rib bones. chest compressions increase carbon dioxide inhalation. chest compressions allow the patient's muscles to wake up.

The polio virus can cause skeletal muscle paralysis by destroying neuron cell bodies. what area of the spinal cord is destroyed