What is seminal research?

What was used to make the first compounds of an element in the group gases? What kind of limitation for Earth-bound astronomers does the Hubble Space Telescope avoids? Select the laboratory test that can be used to confirm ricin exposure? How did Marie curie change lifes? What planet dark side is never facing earth? Some rules to remember when reading topographic maps are? The elements found in Family 1 of the periodic table are so soft that they can be cut with a knife. What other property do these metals share? Why do the bookends should be separated? What is possess knowledge? If a plant were to absorb a substance that inhibits the Calvin cycle the light reactions would be most likely to? How many grams in a dessert spoon? For medication how many ML is in 2 oz? What is it called when young or newer rocks contain pieces of older rock it is called? What planets have rings that are visible? How can I find electrical ground in a house? Would the extinction of gaint pandas affect the world? Is guava fruit's seed hard or soft? Why a freely suspended magnet comes to rest in north south direction? What qualities that Marie Curie haved that make her a hero? Define catalyst to a catalyst?

What is seminal research?