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Strike441 [17]
2 years ago
8

What causes land breeze and sea breeze?

Biology
2 answers:
lions [1.4K]2 years ago
7 0
The answer is B.<span>Hot air blows (from the sea) over the land because there is a high-pressure area over the sea.</span>
Tamiku [17]2 years ago
7 0

Answer: b      ;b

Explanation:

Because I i am better than you I am just playing....

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Which important process takes place in the mitochondria of a cell?
netineya [11]
Mitochondria are involved in cellular respiration, where they produce adenosine triphosphate (ATP). ATP is the cells energy carrier or the cells energy store molecule. 
6 0
2 years ago
Describe the role of algae in marine biome
dlinn [17]
They are the energy base of the food chain for all aquatic organisms, without them all aquatic organisms would most likely parish.
4 0
2 years ago
If 1/8 remains after 21 years, what is the half-life?
vagabundo [1.1K]

Half life formula

The number of unstable nuclei remaining after time t can be determined according to this equation:

N(t) = N(0) * 0.5^(t/T)

where:

N(t) is the remaining quantity of a substance after time t has elapsed.

N(0) is the initial quantity of this substance.

T is the half-life.

It is also possible to determine the remaining quantity of a substance using a few other parameters:

N(t) = N(0) * e^(-t/τ)

N(t) = N(0) * e^(-λt)

τ is the mean lifetime - the average amount of time a nucleus remains intact.

λ is the decay constant (rate of decay).

All three of the parameters characterizing a substance's radioactivity are related in the following way:

T = ln(2)/λ = ln(2)*τ

How to calculate the half life

Determine the initial amount of a substance. For example, N(0) = 2.5 kg.

Determine the final amount of a substance - for instance, N(t) = 2.1 kg.

Measure how long it took for that amount of material to decay. In our experiment, we observed that it took 5 minutes.

Input these values into our half life calculator. It will compute a result for you instantaneously - in this case, the half life is equal to 19.88 minutes.

If you are not certain that our calculator returned the correct result, you can always check it using the half life formula.

8 0
3 years ago
Sickle cell anemia and albinism are both recessive traits in humans. Imagine that a couple, already pregnant with fraternal twin
lidiya [134]

Answer:

81/256

Explanation:

By doing a test cross of albinism and sickle cell anemia you'll see that the probability that one child is unaffected by either conditions will be 9/16. Both children would be 9/16 * 9/16.  

Since fraternal twins are developed from two separate fertilization events the probability chance will be independent.

7 0
2 years ago
1)
Alex

Answer:

1. C

2.C

Explanation:

I've seen these questions before on a test from my school

6 0
2 years ago
Read 2 more answers
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