13. How would the carbon cycle be disrupted if human activities released an extremely large amount of carbon dioxide into the atmosphere?
A. Plants would have more difficulty engaging in photosynthesis, and a massive
amount would die off.
B. Plants and animals in Earth's oceans would have more difficulty processing carbon
dioxide, and carbonification would not occur in deep marine soils.
C. Animals would have more difficulty breathing, and it would be years before the air
contained a healthy amount of oxygen.
D. Humans would have difficulty burning wood and fossil fuels, and it would take
years before the air contained a healthy amount of bicarbonate HELP ASAP FOR TEST

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 alkaline earth metals (beryllium (be), magnesium (mg), calcium (ca), strontium (sr), barium (ba), and radium (ra)) are a group of chemical elements in the s-block of the periodic table with very similar properties: shiny. silvery-white. hopefully this ? i didn't fully understand the question

wild parsnip is a perennial plant which reproduces rapidly in areas which have no sign of agricultural activity such roadside or at no tillage open areas. it's considered invasive because it can inhibit the growth of another plant  and its reproduction is fast. there are several harmful effects of this invasive plant although its taproot is edible since it is a member of the carrot family. wild parsnips can cause skin blistering when in contact because of the chemicals it contains, second it inhibits the growth of other plants, it will restrict the growth of animals when eaten and lastly, it drives away natural pollinators like bees.