lg 11

Which of these earthquakes would most likely lead to the most damage to human lives?

• a 7.2 earthquake in Los Angeles

• a 8.5 earthquake in the rain forest

• a 3.6 earthquake in downtown Chicago

• a 3.5 earthquake at the bottom of the Atlantic Ocean

Experts estimate that over 25,000 species become extinct each year, with some estimating this number to be over 100,000. This is an alarming rate that threatens fragile ecosystems and global biodiversity. Which of these is currently the leading cause of extinctions today?

• global climate change

• habitat loss due to human interactions

• development of cleaner running automobiles

• natural disasters such as volcanic eruptions and earthquake

The catastrophic event shown in this picture formed over water, produced high winds and heavy rains, and brought a large storm surge to New Orleans. The natural disaster displayed in this picture is a:

• volcano

• hurricane

• water spout

• continental drift

This catastrophic event brought devastation, homelessness, and death to the residents of New Orleans. Meteorologists, public information systems, and government officials have been working together to use the most advanced satellite weather technology to ensure that another situation like this will not happen anywhere in the United States. Although technology can help save lives, it cannot stop the devastation of homes and land brought on by

• tornadoes

• hurricanes

• earthquakes

• water spouts

The rate of land conversion for agriculture is especially high in the tropical regions. What is a LIKELY effect of this on the local ecosystems?

• mass extinction of species

• increase in species diversity

• formation of temperate weather conditions

Water conservation is an important issue for many reasons. One factor is that water conservation preserves and protects our natural resources. Conserving water means more water is available to serve additional water needs, as well as for wildlife and recreation. Water conservation practices can result in lower wastewater discharges which can mean an improvement in overall water quality. Conserving water diminishes our need to find or build new water sources, leaving them in reserve for our possible later use.

Preservation does result in

• lower algae levels

• reduction in industry standards

• slowing the building of new housing

• lessening the need to find new water source

Geologic data for recent California earthquakes, by location and magnitude, are shown in the map. Based on this data, predict where an earthquake is LEAST likely to occur in the near future and give a logical reason why this is.

• Location C, because all of the past earthquakes in that location have been very minor.

• Location D, because there are the fewest fault lines here as well as the fewest earthquakes

• Location B, because it is a heavily populated area and precautions have been taken to guard against earthquakes.

• Location A, because of the recent frequency of earthquakes in this location, there will not be anymore for a long time.

Phosphate rock is a nonrenewable natural resource that is used in synthetic fertilizer and feed additives. Phosphates have an eutrophication effect on nonagricultural soils and surface water. Input of phosphate rock in meat protein production is ________________ than for the production of soybean-based protein.

• much higher

• much smaller

• about the same

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about which of these?

• the hurricane’s track and category rating

• the hurricane’s origin and category rating

• the hurricane’s origin and minimum wind speed

• the hurricane’s category rating and maximum wind speed

A volcanic eruption results in suspended particles, such as dust and ash, in Earth's lower atmosphere. What is the result of this on Earth's weather/climate?

• A) reduced solar radiation and over-all cooling

• B) a decrease in the ozone in Earth's atmosphere

• C) increased carbon dioxide, increased global warming

• D) increased solar radiation and a spike in temperatures