1. Please help me I will mark brainest if it is right A book sitting on a shelf has a potential energy of 9800 J and is sitting at a height of 10 m. What is the book’s mass?

"a.) well–developed vascular system."

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.