For 17 the answer is d
for 18 the answer is b
Vitamin C, ascorbic acid, is one of the most important vitamins found in citrus juices, including orange juice.<span> The temperature and storage time affects the percent of vitamin C content of orange fruits and orange juice. Different varieties of oranges also have different levels of vitamin C. The mid-season variety, Pineapple Orange had the highest levels, followed by the main early-season variety, Hamlin Orange. The late-season Valencia Orange had the lowest vitamin C content. Additionally, it was found that the longer the Valencia Orange fruit stayed on the tree, the lower the vitamin C level. </span>
Hi!~
The answer to your question would be <em>micro climate.</em>
<em>Hope this helps!</em>
Recycling is the reuse of a product to make it new again into another product