Answer: The correct answer for the blank is-
92.
There has been total 118 elements discovered o earth out of which approximately 92 elements are naturally occurring. Other elements are produced by artificial means.
The most abundantly occurring elements are oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorous.
(1) increased warming of local ecosystems
(2) increased exposure to ultraviolet light
(3) reduction in the pH of acid precipitation
(4) reduction in the frequency of floods and
droughts
Answer:
The correct answer is option (2) "increased exposure to ultraviolet light".
Explanation:
The ozone shield or the ozone layer is a region of the atmosphere comprised of high concentrations of ozone that absorbs most of the Sun's ultraviolet radiation. Therefore, damage to the ozone shield will cause increased exposure to ultraviolet light over the United States. This could cause harmful consequences such as an increase of cases of skin cancer, sunburn and cataracts.
Answer:
The correct answer is "False".
Explanation:
There is no data to support the statement that unintended pregnancy is more likely than intended pregnancy to result in early prenatal care. There are other factors that affect early prenatal care, such as age, culture, economics, marital status or mental health conditions of the parents. Unintended or intended pregnancy is not related with the propensity of giving early prenatal care.
The cell cycle is a biological process where a cell grows, prepares for division, and divides to create new cells. It's used in sentences to describe the process of cell growth and division. Researchers often need to understand the cell cycle for their work.
The cell cycle is a crucial concept in biology, which refers to the series of events that take place in a cell leading to its division and duplication. For instance, one can use it in a sentence like this: 'During the cell cycle, a cell grows, prepares for division, and divides to form new daughter cells.'
Another example of a sentence using the term could be 'Understanding the cell cycle is critical for researchers who are studying the mechanisms behind cell development and growth.'
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