surface

They could have crusts and surfaces and interiors that are just slightly different from Earth.

Finally, a wooden door broke the river’s surface— with Oiwa’s writhing body on one side and Kohei’s on the other.

For example, more receptors may be moved to the cell's surface, making the neuron more sensitive to future signaling from its neighbors.

Well, there are various ideas for increasing the Earth's surface reflectivity or albido effect, like developing more reflective crops, painting rooftops white, or covering areas with reflective materials.

Your atlas starts on the planet’s surface.

So imagine you’re floating in space, 250 miles above Earth’s surface.

In fact, the temperature and pressure in the clouds is just like here on Earth's surface.

The absence of a reaction can be just as informative, indicating when people or objects blocked blood from hitting a surface.

Children learn about extinct sea life which once inhabited the ocean’s reefs, all of which have vanished thanks to rising surface water temperatures.