Natural Causes Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Question | Answer |
the Minoan and the Roman Warm perods were____ warmer than present | 4 degrees |
the Medieval Warm period is __ degrees warmer than present | 2 |
between 1650 and 1850 the world cooled _____ degrees | 4 |
in the 20th century warming period it has warmed _-_ degrees in the last 100 years | .2-.9 |
there were records of huge ____ production in the Roman warming period | wine |
Scientists used the evidence provided to _ | infer the climate changes |
the warmest time period | the holocene climate optimum |
scientists credit medieval warm period to | the Inca Empire |
Incas had warm weather to farm extensivley irrigated with _____ | glacier runoff |
Vikings took advantage of the ocean to settle ___ and _____ | Iceland ; Greenland |
________ years ago there was a deep ice age level down _____ ft. and man walked from _____ to ___ | 50000; 300;Asia; Alaska |
took Earth ___ years to get out of Ice Age | 40000 |
Holocene refers to the Earth's last______ years of history | 10000 |
CO2 levels have been rising for _______ years to end the ice age | 18000 |
ice core samples from antarctica show __ glacial/ interglacial cycles | 8 |
when did warm period peak and what has itt been doing since | 1998; cooling |
Have CO2 levels reached previous interglacial periods | yes |
9.99% of climate is regulated by | water, orbital variations,and solar variations |
water accounts for what percent of the greenhouse effect | 36-66 |
T/F CO2 causes climate change. explain | false because co2 is a product of climate change |
there is a constant exchangement between | oceans, atmosphere, and vegetation |
_____ billion tons of CO2 circulate annually between ocean and atmosphere | 90 |
when ocean water is ------- gases are absorbed and trapped | cold |
what is an indicator of a rising temperature | co2 |
what water mass is a BIG indicator of temperature | Arctic Ocean |
what is the effect of no evaporation | no snow to replenish the icecaps so they will shrink |
what do large amounts of snow cause | the solar heat goes into space causing global cooling |
it takes ____ years of warming or cooling to effect the world's oceans which in turn effects the atmos | 800 |
perihelion and aphelion are examples of | eccentricity |
diffe rfrom the normal | eccentricity |
variation in the earth's tilt from the sun | obliquity |
the change in the earth's wobbling | precession |
why does solar variation vary | the sun is more active through cycles |
sun spots vary thru a ____ year cycle | 11 |
from 1900 - 1960 there were more sunspots ever seen in over ___ years | 8000 |
the last sunspot cycle was from 1991- 2007 averaged ________ sunspots per year | 1361 |
the current sun spot cycle began in 200 and appears to be _ -er than the others | weaker |
our present sunspot cycle had its peak in | 1998 |
Created by:
surfergurl
Popular Science sets