Climate

If you collect data for daily humidity, wind speed, temperature, and precipitation, what are you measuring?

• Ocean Currents

• Climate

• soil type

• weather

If you collect data for average yearly rainfall, average yearly temperature and wind patterns, what are you measuring?

• Climate

• weather

• soil

• ocean currents

How is climate different from weather

• weather is long term climate patterns

• climate is long term weather patterns

• climate is day-to-day

• weather is a measure of temperature and rainfall only

How are ancient temperatures recorded?

• tree rings

• ice core sampling

• historical temperature measurements

• glacial and sea ice retreat

Ice core samples from glaciers and the ice caps contain bubbles of ancient atmospheres that are in layers based on age. What question are scientists most interested in?

• of ice in each layer

• amount of carbon dioxide

• amount of water vapor

• amount of ozone has changed

Scientists who study glaciers report that a few glaciers have grown recently, but an overwhelmingly large number have either receded to historically low levels or have vanished. Why?

• Sunspots occur in 11 year cycles

• Earth is closer to the sun

• Glaciers are temporary because they depend on snowfall each winter.

• Majority of glaciers have receded or disappeared

Earth's ice ages can be explained by Milankovitch Cycles. What causes these cycles?

• sunspots and solar flares

• changes in the Earth's orbit and the orientation of the poles

• changes in the force of gravity of the sun

• changes in the number of rainforests in Earth

Antarctica once used to support tropical life. What factor is responsible for this?

• ozone hole

• global warming

• plate tectonics

• ice ages

what do an increase in sunspots cause on earth

• An increase in sunspots and solar flares

• A decrease in magnetic field

• A stable amount of radiation

• An increase in CO₂

What in a Milankovitch cycle would allow an iceage

• Small eccentricity

• small tilt of obliquity

• precession toward the sun in the winter

• large tilt obliquity