Register for an account

X

Enter your name and email address below.

Your email address is used to log in and will not be shared or sold. Read our privacy policy.

X

Website access code

Enter your access code into the form field below.

If you are a Zinio, Nook, Kindle, Apple, or Google Play subscriber, you can enter your website access code to gain subscriber access. Your website access code is located in the upper right corner of the Table of Contents page of your digital edition.

Planet Earth

Keep Your Brain Healthy (a quiz)

InkfishBy Elizabeth PrestonFebruary 26, 2011 6:10 AM

Newsletter

Sign up for our email newsletter for the latest science news

Happy Friday! Have some sludge.

1. In honor of the Oscars this weekend, we'll start with a still from a very cool video. What is this?

placeholder

a. a bioluminescent squid

b. fungus farmed in an ant colony

c. the inside of a mouse embryo

d. a model of new galaxies forming in space

(If you like videos that zoom through mysterious objects, also check out these fruit-and-vegetable MRIs.)

2. According to new research, climate change is having what effect on your allergies?

a. Allergy season has lengthened by two to four weeks in some parts of North America.

b. The ragweed population is declining due to mass die-offs of one of its major pollinators.

c. Allergy sufferers' symptoms have decreased by up to 12%, since heat represses histamine activity.

d. There's no such thing as climate change. We should keep burning fossil fuels, because carbon dioxide is good for plants.

3. Using video and chemical sampling of the ocean floor in the Gulf of Mexico, oceanographer Samantha Joye found:

a. almost no oil, hooray!b. blankets of oil several inches thickc. healthy populations of sea creaturesd. bacterial spit

4. Speaking of sludge, Indonesia could spend the next 20 to 90 years dealing with constant flow from its:

a. mud volcanob. tar geyserc. oil pipeline ruptured. sewage river

5. Finally, good news (for some people). Apparently, being bilingual can:

a. reduce stressb. make your brian biggerc. delay the onset of Alzheimer's diseased. prevent brain tumors

Answers are in the comments.

Image: Ian Smyth, Monash University.

    2 Free Articles Left

    Want it all? Get unlimited access when you subscribe.

    Subscribe

    Already a subscriber? Register or Log In

    Want unlimited access?

    Subscribe today and save 70%

    Subscribe

    Already a subscriber? Register or Log In