All of the following are sources of air pollution, EXCEPTA) chlorofluorocarbons (CFCs).
B) heavy metals such as mercury.
C) nitrogen oxides from automotive exhaust.
D) small particles of smoke and dust in smog.

Answers

Answer 1

Answer:

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.

Answer 2

Answer: B is the correct answer.

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UCU-CGA-GCC-GUU-GGG-UGA how do I convert this into an amino acid using the codon chart, i've been on this forever

Answers

So u get a codon chart it'll look like a circle with a bunch of letters. Then you use the letters u are given for every dash such as UCU and you go biggest to smallest letter until you hit an amino acid or stop then what you write down is that amino acid you hit. For an example, we'll use UCU. You go to the big letter U inside that big U will be a smaller C and inside that C will be a smaller U which leads to an amino acid or a stop codon. And you do this with every group of 3 letters. If one is missing it stops prematurely and if there is an extra when it may have a mutation. I hope that helped! If not there are YouTube videos out there that can help.

Why didnt the present shapes of the continents fit perfectly into a supercontinent

Answers

The borders (coastlines) of the continents underwent a number of changes since the split. Often, chunks of land were washed away with water, slowly or in bigger portions. The coast was generally "smoothed" by the ocean currents too, and in some places more land was added with the material that the ocean currents brought.

Then, the tectonic plates continue to move, so this adds to the changes of the shape of the continents.

Answer:

because of erosion and the shifting of tectonics places ver slowly and continuolsy changes the shape of the land

Explanation:

1. What are some of the natural disasters that Mexico experiences? a. tsunamis
b. earthquakes
c. blizzards
d. A and B only
2. Which of the following are effects of "El Nino"?
a. hurricanes
b. floods
c. droughts
d. A and B only
e. A, B, and C

Answers

1. The right answer is d. A and B only.

On September 8, 2017, the earth shook in Mexico on the night of Thursday to Friday. An earthquake measuring 8.2 on the Richter scale hit the south of the country off the coast of Chiapas state, according to the US Geospatial Monitoring Center (USGS). The shock was felt as far as the capital, Mexico City.

2. The right answer is e. A, B, and C.

El Niño, and its La Niña counterpart, are large-scale oceanic phenomena of the equatorial Pacific Ocean, affecting the wind regime, sea temperature, and precipitation. El Niño and La Niña correspond to the two opposite phases of the coupled ocean / atmosphere phenomenon called ENSO (El Niño / Southern Oscillation).

Originally, the name El Niño was attributed by Peruvian fishermen to the small invasion of hot water that occurs every year along the coasts of Peru and Ecuador around Christmas - hence its name: in Spanish, El Niño means the child Jesus. By extension, the climatic phenomenon corresponding to the increased warming of surface waters near the coast of South America is now called El Niño. We know that it is linked to a cycle of changes in atmospheric pressure between the east and west Pacific, coupled with a cycle of ocean current along the equator.

Only ENSO has such a marked global impact. The other two ocean basins, Indian and Atlantic, are too small to allow such an important coupling between atmospheric and oceanic circulation, even if they also undergo deep water upwelling and trade winds.

1.) Some of the natural disasters that Mexico experiences are tsunamis and earthquakes. The correct answer is D.

2.) The effects of "El Nino" are hurricanes, floods, and droughts. The correct answer is E.

describe the three steps in urine formation. include a definition of the molecules involved during each step, as well as the process involved (active or passive transport)/

Answers

Urine forms as some of the blood plasma spills out, some of these spilled plasma components are taken back up into the blood, and other material is selectively sent out to be added to the urine. In other words, there are three main things happening to form urine.
glomerular filtration (blood plasma spills out) bullet tubular reabsorption (some items are selectively reabsorbed into the blood) bullet tubular secretion (some blood plasma items are selectively sent out into the tubules)

A pea plant is heterozygous for height (Tt). Which allele will be carried by a pollen grain produced by the plant? A. T only B. t only C. T and t D. T or t

Answers

The correct answer for the question shown above is definitely the last option D. T or t because pea plant is able to carry any of the allele.

D is your anwser and np

Which of the following is a way that humans impact rivers and streams?a.
pollution
b.
dams
c.
flooding
d.
all of the above

Answers

The way that humans impact rivers and streams is pollution.

WHAT IS POLLUTION?

Pollution is the release of toxic or harmful substances into the environment such as water, air and the atmosphere.

Pollution as an act can be conducted by humans or anthropogenic activities. The ways by which humans release harmful wastes into rivers and streams is;