Please answer this: Background: As the thermal expansion is the key factor to the sea level variability, decreased heat content should result in a reduction in global mean sea levelon a decadal time scale.[2] However, Grinsted [2007] argued that a significant sea level rise is the first direct response to the volcanic eruption, and after that sea level becomes to drop. One possible explanation for this phenomenon is the imbalance of ocean mass fluxes. After the volcano eruption, evaporation over ocean becomes lower, because it is largely determined by the ocean skin temperature change. The quick response of evaporation to the surface cooling and the delayed response of river runoff to the associated lower precipitation lead to an increased sea level. About 1~2 years later, river discharge becomes less due to the reduced precipitation and less sea ice melting, which cause sea level to drop.[9] Paragraph: In the beginning of year 1000 mount Etna had a huge volcanic eruption. To test the effect of volcanic eruption on sea level scientists measured geological data through carbon dating. They measured the data for four different time point - for year 998, year 1000, year 1002, and year 1010. Scientists now need to compare and analyze these data. Given the paragraph above, please answer correctly the following question: According to Grinsted, when would the sea level be lower, year 1000 or year 1002?
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Answer: 1002

Please answer this: Background: Located mostly in the Arctic north polar region in the middle of the Northern Hemisphere, the Arctic Ocean is almost completely surrounded by Eurasia and North America. It is partly covered by sea ice throughout the year and almost completely in winter. The Arctic Ocean's surface temperature and salinity vary seasonally as the ice cover melts and freezes; its salinity is the lowest on average of the five major oceans, due to low evaporation, heavy fresh water inflow from rivers and streams, and limited connection and outflow to surrounding oceanic waters with higher salinities. The summer shrinking of the ice has been quoted at 50%. The US National Snow and Ice Data Center (NSIDC) uses satellite data to provide a daily record of Arctic sea ice cover and the rate of melting compared to an average period and specific past years. Paragraph: The inuit tribe lived and hunted on the shores of the Arctic ocean., very close to the North pole. The weather there was very cold throughout the year. Their distant cousins the umpala tribe, lived thousands of miles away, on the shores of the Indian ocean, where the weather was humid and warm, in a tropical climate. Given the paragraph above, please answer correctly the following question: Which tribe experienced more sea ice?
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Answer: inuit

Please answer this: Background: Because of human activities, there is more carbon dioxide in the atmosphere today than in the past hundreds of thousands of years. Burning fossil fuels and has released great quantities of carbon dioxide into the atmosphere. Cutting forests and clearing land has also increased carbon dioxide into the atmosphere because these activities reduce the number of autotrophic organisms that use up carbon dioxide in photosynthesis. In addition, clearing often involves burning, which releases carbon dioxide that was previously stored in autotrophs. Paragraph: John has been hearing about climate change for last couple of years. He wants to understand the science behind climate change. For that, he picked up two eras in earth's history, era A and era B. Era A was hundred thousand years ago, and era B is in the present day. He now wants to compare these to eras to understand the change in climate better. Given the paragraph above, please answer correctly the following question: Would era A have more or less autotrophic organisms than era B?
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Answer:
more