9.
Which of these best matches surface features with the processes that are responsible for their formation? (3 points)

sinkholes, caves, and hills heating of ground water due to geothermal energy

geysers, hills, sinkholes groundwater erosion leading to deposition of minerals

sinkholes, caves, and hot springs chemical and physical actions of groundwater

geysers, sinkholes, and hot springs dripping of groundwater from the ceiling of an underground cave

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

nb

explanation:

kj

the answer is d. none of the above

producers within ecosystems are essential as they are at the base of the food chain. plants are examples of producers. they use the process of photosynthesis to capture light energy and use it to convert simple inorganic substances (carbon dioxide and water) into organic substances (glucose).