Answer:
6. We know because of bones and ancient fossils.
7. Yes, because we are currently making history right now as I write this.
8. About 5 or 4 billion years or 50 million years i think.
9. Charles Darwin was an English Biologist as well as a geologist.
10. Answer Depends on yourself, sorry
Explanation:
Well the answer to this is difficult since they both do different things. Pain killers relieve pain and depressants help with the lack of serotonin. But the painkillers and anti- depressants are killing more people each year because they are abusing the drugs. So the answer in my mind would be pain killers because it gets rid of pain and it makes you have side effects such as hallucinations. Depressants just make you drowsy at most.
Explanation:
The definition of a spring tide is a flood or rising of water especially during a new or full moon. ... A tide in which the difference between high and low tide is the greatest. Spring tides occur when the Moon is either new or full, and the Sun, the Moon, and the Earth are aligned.
Waves are additive so when the gravitational pull of both bodies is in the same direction the high tides add and the low tides add (Figure below). Highs are higher and lows are lower than at other times through the month. These more extreme tides, with a greater tidal range, are called spring tides.