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Sophie [7]
2 years ago
9

A major chemical spill occurred five years ago at Baker’s Beach, the world’s sole nesting ground for Merrick sea turtles, and pr

evented nearly all the eggs laid that year from hatching. Yet the number of adult female Merricks returning to lay their eggs at Baker’s Beach has actually increased somewhat since five years ago. Clearly, environmentalists’ prediction that the world’s Merrick population would decline as a result of the spill has proven unfounded.Which of the following, if true, most seriously undermines the argument offered in refutation of the environmentalists’ prediction?A. The chemical spill five years ago occurred at a time when there were neither Merrick sea turtles nor Merrick sea turtle eggs on Baker’s Beach.B. Female Merrick sea turtles begin returning to Baker’s Beach to lay their eggs when they are ten years old.C. Under normal conditions, only a small proportion of hatchling female Merrick sea turtles survive in the ocean until adulthood and return to lay their eggs at Baker’s Beach.D. Environmental pressures unrelated to the chemical spill have caused a significant decline in the population of one of the several species of sea birds that prey on Merrick sea turtle eggs.E. After the chemical spill, an environmental group rejected a proposal to increase the Merrick sea turtle population by transferring eggs from Baker’s Beach to nearby beaches that had not been affected by the spill.
Chemistry
1 answer:
Alja [10]2 years ago
5 0

Answer:

A) Misinformation! Contradicts info given.

B) Turtles laying eggs now were not affected by the spill. Effect of spill should be approximately 10 yrs later.

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Which statement describes the blood type of a person with the alleles Ai?
lyudmila [28]

Answer:

d i dont now but im sure my answer is d im not good to write english word

5 0
3 years ago
Which of the following compounds contains both ionic and covalent bonds? KOH N2O5 CH3OH Na2O
dusya [7]

Answer: a.KOH

Potassium hydroxide is an ionic compound where the K+ is the cation and OH−is the anion. At the same time, the compound also contains a covalent bond since the anion, OH−is formed from electron sharing between the O and H atoms.

Hope this helps........ Stay safe and have a Merry Christmas! :D

Explanation:

4 0
3 years ago
Could a mixture be made up of only elements and no compounds. explain
lbvjy [14]
Yes, because a mixture is 2 or more substances that are mixed together (not chemically). A mixture could be two different elements physically combined in a set ratio.
8 0
2 years ago
Why do actinides form covalent bond?​
Jet001 [13]

Answer:

bonding driven by ionic interactions.

Explanation:

5 0
2 years ago
A potassium bromide solution is 8.30% potassium bromide by mass and its density is 1.03 g/ml. what mass of potassium bromide is
pshichka [43]

<u>Answer:</u> The mass of potassium bromide present in 41.2 mL of solution will be 3.522 grams.

<u>Explanation:</u>

We are given that KBr is present in 8.3% KBr solution, which means that 8.3 grams of potassium bromide is present in 100 gram of the solution.

To calculate the volume of KBr, we use the formula:

Density=\frac{Mass}{Volume}

Mass of the solution = 100 grams

Density of KBr solution = 1.03g/mL

Volume of the solution = ? mL

Putting values in above equation, we get:

1.03g/mL=\frac{100g}{Volume}\\\\Volume=97.08mL

Now, to calculate the mass of KBr in 41.2mL of the solution, we use unitary method.

In 97.08 mL of solution, mass of KBr present is 8.3 grams.

So, 41.2 mL of solution will contain = \frac{8.3g}{97.08mL}\times 41.2mL=3.522g of KBr.

Hence, the mass of potassium bromide present in 41.2 mL of solution will be 3.522 grams.

7 0
3 years ago
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