Answer:
A. 0.877 moles
B. 0.997 moles
C. 1.330 moles
D. 1.995 moles
E. 2.660 moles
Approximately 90 naturally occurring elements have been found in nature.
Elements are the fundamental building blocks of matter, and they cannot be broken down into simpler substances by chemical means. As of my knowledge cutoff in September 2021, there are 118 known elements in total, with 94 of them being naturally occurring or stable elements. Out of these naturally occurring elements, some are relatively abundant in the Earth's crust and are essential for life, while others are rare and occur in trace amounts.
The most abundant elements in the Earth's crust are oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium. These elements make up the vast majority of the minerals and rocks that form the Earth's surface.
Some elements, like carbon, hydrogen, nitrogen, and oxygen, are essential for life and are the building blocks of organic compounds, such as carbohydrates, proteins, lipids, and nucleic acids. These elements play a crucial role in the biochemistry of all living organisms.
On the other hand, there are elements that are extremely rare and occur in trace amounts, such as gold, platinum, and iridium. These elements have unique properties and are often valued for their scarcity and various industrial applications.
Elements can be found naturally in various forms, including minerals, ores, gases, and dissolved in water bodies. The study of elements and their properties is central to chemistry, physics, geology, and many other scientific disciplines, as it helps us understand the composition of the Earth, the universe, and the chemical processes that govern our world.
To learn more about elements, here
#SPJ6
The answer would be B. Pp'Pp.
B) heavy metals such as mercury.
C) nitrogen oxides from automotive exhaust.
D) small particles of smoke and dust in smog.
The correct answer is B) Heavy metals such as mercury.
Explanation:
Heavy metals such as mercury or lead are denser than regular metals, this causes it is common for these metals to be found in the surface of Earth rather than in the air or atmosphere. Indeed, mercury and other similar metals are extracted from the Earth's crust and then used for different purposes. As a result of this, mercury ends up in the surface of Earth or in water sources which causes soil or water pollution. This means mercury is not a common source of air pollution; on the opposite other such as CFCs, nitrogen oxides and smog remain in the air and therefore are sources of air pollution.
Differences between the way men and women speak are largely culturally determined, though early research suggested they were due to societal socialization. Modern research indicates the impact of linguistic determinism - the way one's languages can influence one's thoughts and perceptions. Importantly, these gendered speech patterns are not a universal biological fact, but vary across different cultures.
Various factors, predominantly cultural and social, contribute to the differences between men's and women's speech. Early research theories such as those from Robin Lakoff suggested that societal socialization resulted in women's speech being seen as uncertain, excessively polite, and full of hedges. Likewise, Deborah Tannen argued that men and women communicate differently, with men focusing more on status and women on building connections through conversation.
However, more recent studies argue against this concrete division. Janet Hyde, challenging traditional gender role-based speech patterns, conducted a comprehensive analysis which showed minimal differences in verbal skills between boys and girls. Similarly, language research on cultural aspects from Madagascar and New Guinea reveal that speech patterns associated with gender are indeed culturally relative.
Another relevant factor is the role of linguistic determinism, which suggests that the language one speaks can significantly influence one’s thoughts and perceptions. This idea was demonstrated in Lera Boroditsky's research, that native German and Spanish speakers, in which nouns are gendered, describe things differently depending on the noun's gender in their language, even when communicating in a gender-neutral language such as English.
In conclusion, while there may be some observable differences in the way men and women speak, gendered speech patterns are largely cultural and vary significantly across different societies, and they cannot be generalized or naturalized as biological phenomena.
#SPJ11
Answer:
The water on earth changes forms as it moves from one reservoir to another.
Explanation:
The other two answer choices are
1: as water moves through an ecosystem, its energy is lost between trophic levels.
2:The water on earth changes forms as it moves from one reservoir to another.
and
3: Water in the atmosphere must be converted to another chemical before animals can use it
The correct answer of course would be answer choice 2. It does change forms as in states of matter from liquid to gas (water vapor) to solid (ice) and back again. This is the best summery of what the water cycle means.
1 is incorrect because it violates the law of conservation of energy. Water has nowhere to go so it stays on the surface of the earth.
And three is wrong because it simply does not describe the water cycle.