WILL GIVE BRAINLIEST! 1)How does contaminated runoff affect the delicate balance of ocean life? A: Nitrogen and oxygen are in balance in ocean water. If more nitrogen is added, oxygen is forced out. B: Schools of fish will not travel through areas of polluted water, forcing them to stay in one place, overfeeding on one source of food. C: The food supply for phytoplankton is greatly increased, and they multiply so fast that their predators cannot control their population. Poisons in the runoff kill many of the marine organisms that prey on phytoplankton, which allows them to increase their population greatly, causing an algal bloom.

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.

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.

the earth is thought to have been formed about 4.6 billion years ago by collisions from a cloud of hydrogen, helium, rock, ice and other materials. these were pulled together by gravity to form objects in and around earth like- asteroids and small early planets called planetesimals.

so, the best possible answer to this question will be option d- to harden materials to form different parts of earth’s layers