If there's a cloud symbol next to an iOS app name, this app has been offloaded to increase storage space on your device.
While it is recommended that you keep the True Tone Display enabled, you can disable it in the Settings app under Display & Brightness. Just tap the True Tone toggle so it is OFF/WHITE.
You can also open Control Center and hard-press the brightness slider. This will give you the option to adjust either Night Shift or the True Tone Display. Just tap the True Tone option and slide down the slider to disable it.
Yes and no... iOS 11 allows you to quickly repeat a timer but doesn't let you set it to automatically repeat. If your timer ends while your lock screen is on you will see a button to repeat it. If you aren't on your lock screen you will need to deep press the clock notification for the repeat button to come up.
The iOS Weather app used to be powered by Yahoo Weather but changed to The Weather Channel with iOS 8. The Weather Channel bases its forecasts on its own meteorologists' interpretations of data from a variety of sources including the National Weather Service, NASA, satellites and weather balloons among others.
The iPhone 7 and iPhone 7 Plus are the first two iPhone models to be listed as "splash and water resistant" by Apple. Both models both carry an IP (Ingress Protection) 67 rating. This means the iPhone 7 and 7 Plus can be immersed in liquids up to 1m for up to 30 minutes, however, it is ill-advised to take your iPhone for a swim or into the ocean.