Which scenario describes an interaction between two of Earth's spheres?

Water flows from a stream to a lake.

Gravity moves rocks to another location.

Lions use energy to catch other animals for food.

Bears dig big holes in the ground to protect their young.

The correct answer is D. Bears dig big holes in the ground to protect their young

Explanation:

The Earth spheres include the biosphere (life in the Earth), the hydrosphere (water bodies), the geosphere (rocks and other elements that compose land and soil), and the atmosphere (gases that compose the air). In this context, there is an interaction between two spheres: the biosphere and the geosphere, when a bear digs holes in the ground because a living organism that is part of the biosphere is modifying the structure and shape of superficial soil, which is part of the geosphere.