Google Nexus 10, Manual Book

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NEXUS 10 GUIDEBOOK USE GOOGLE NOW & SEARCH 49
to get back to the main Google Now screen, touch Hide sample
cards.
In addition to the cards shown in the list of samples, you may also
see a Public Alerts card.
Public Alerts provide emergency information from sources such
as the National Weather Service and the U.S. Geological Survey.
Coverage is currently provided by a limited number of key part-
ners, only in the United States (excepting U.S. Geological Survey
earthquake alerts). Google can’t guarantee that you’ll see every
relevant alert. However, Google Now attempts to show you what’s
important when you need it, in the hope that such alerts are a use-
ful additional source of information. To learn more, visit
support.
google.com/publicalerts .
About location access, reporting, & history
Location access settings determine whether your tablet can use
your current location. When location access is turned on, apps
can use it to give you more relevant information, such as nearby
restaurants or commute traffic.
To turn off location access for all apps, go to Settings > Personal
> Location access. If you prefer, you can turn off location access
by Google apps while still permitting its use by non-Google apps
– just go to Settings > Accounts > Google > Location settings.