Part A Which statement best expresses how the author achieves a particular
purpose in paragraphs 5 and 6?
The author describes the time it will take for spaceships to
reach the nearest star to explain why Nick Sagan's message
will never be heard.
The author builds an explanation of the limitations of a
spaceship's speed as a transition to a description of how warp
speed theory works.
The author contrasts various technologies that can increase a
spacecraft's speed to indicate the likelihood of reaching a
nearby star in the future.
The author includes unreasonable examples of how to
O increase a spacecraft's speed to emphasize the unrealistic
expense of such an endeavor.

Skill check questions rearrange the paragraphs below into the correct sequence. that's because engineers on the ultraclean project have invented a self-cleaning, antibacterial metal surface that repels water with an intricate layer of laser-engraved valleys. when it rains, the lotus does not become damp; the water simply trickles off in fat droplets, taking any bugs and dirt with it. the drudgery may not be around much longer, however, if a team of italian scientists has anything to do with it “it's simply an amazing plant,” concluded professor luca romoli, leader of the project, “and we've succeeded in mimicking it. magnifico! ” few tasks in life hold less joy than scrubbing the ghost of somebody else’s porridge from a saucepan. the starting point for the research was the leaves of the lotus flower.

Write 2 questions on body image hormonal , chemical changes in teens gender, and development issues

What is the best way to manage oil transport on waterways? a. prevent oil spills and regulate the amount of oil that can be shipped at one time. b. use a skimmer, containment boom or chemical dispersant to clean up spilled oil. c. burn off oil spills from the water's surface when they occur.