1.) which main-sequence stars on the hertzsprung-russell (h-r) diagram are the least massive? blue orange red yellow 2.) stars of which color have the highest surface temperature? red orange blue yellow 3.) neutron stars, smaller than white dwarfs, are thought to be remnants of supernova events red giants black holes nucleosynthesis 4.) another name for the interstellar matter that will eventually form a star is supernova red giant black hole nebula 5.) what theory states that the universe began in a violent explosion? big bang hubble’s law big crunch doppler effect

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures

Drag each description to the correct location on the image. not all descriptions will be used. describe the parts of a comet. the frozen part of the comet the atmosphere of gases and dust formed when the nucleus vaporizes tail made of small, solid dust particles tail made of ions that appears to point away from the comet's orbit

Abody cell has been growing and at synthesis proteins.in the nucleus of this body cell,dna replication is taking place. and a copy of the cells genetic material is copied.which of the following is the best conclusion you can make about the life cycle of this cell ? a) the cell is ready to undergo mitosis.and a chemical signal will send the cell to prophase b)the cell is undergoing meiosis and will cross over the genetic material next c)the cell is in the s phase of interphase and will move next to the g2 phase d) the cell is in the g2 phase of the interphase and is ready to begin diving