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Vanyuwa [196]
3 years ago
5

Henri Becquerel and the Curies worked with uranium, radium, and polonium, all of which give off _____. sunlight radiation elemen

ts light
Biology
1 answer:
Dennis_Churaev [7]3 years ago
6 0

Answer:

Henri Becquerel and the Curies worked with uranium, radium, and polonium, all of which give off radiation.

Explanation:

Henri Becquerel and Marie Skłodowska-Curie discovered the process of radioactivity. They were awarded Nobel prize for their work. Radioactivity is the process in which an unstable element emits energy in the form of radiation. This process also produce a lot of heat. Radiations are very harmful for human health however they have wide applications in modern technology.  

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The diagram below shows the positions of Earth, sun, and moon during two types of tides. The picture on the left is labeled Tide
Free_Kalibri [48]

Answer:

c. the gravitational forces due to the sun and the moon cancel each other's effect

Explanation:

The two diagrams represent Neap tides. Neap tides occur when the Sun, the Moon and the Earth are aligned at right angles. Moderate tides are formed because the bulge due to gravitational pull of the Sun cancels the bulge due to moon. The difference between the high tides and the low tides is the smallest.

5 0
2 years ago
The odds of a couple's first baby being a boy or girl are 50%. Let's say they have a girl, then they have another girl, then ano
Vadim26 [7]

I am pretty sure that it's still 50% :)

6 0
4 years ago
PLEASE HELP ASAP!
andrew11 [14]

Choice answer D because it is fully correct

3 0
3 years ago
Alkaptoneuria is a recessive genetic disorder found among North American populations at a frequency of about 1 in 500,000 births
Dafna11 [192]

Answer:

The correct answer is - 1/41,493

Explanation:

Let assume the frequency of the two possible same allele genotype (dominant and recessive) in an inbred population is p and q. Then the frequency of heterozygotes (H) is denoted as:

2pq + 2pqF.  ( where F is the inbreeding coefficient).

The frequency of the two different hoozygotes in inbred population can be calculated as:

p2 + pqF and q2 + pqF. (Where p and q are the allele frequency of the dominant and recessive phenotype.

Given: Frequency of Alkaptonuria (q 2) = 1:500, 000

=> q = 1/707

p = 706/707 ( Approx values)

solution:

Inbreeding coefficient (F) = 1/64

Therefore,

Frequency of Alkaptonuria in second cousins= q 2 + pqF

= 1/500, 000 + (706/707 x 1/707) x (1/64)

= 1/500, 000 + 1/45, 248

= 1/41,493 (approx)

5 0
3 years ago
What distinguishes surface and body seismic waves?
siniylev [52]
Answer:
Seismic waves are the wave form of energy that travels through the earth’s layer and they are produced as a result of earthquake, magma movement, volcanic eruptions, land slides and large man- made explosions.
There are two types of seismic waves: body waves and surface waves. Body waves travel through the interiors of the earth. Surface waves travels only through the interface between earth and the atmosphere.
Explanation: please look at comments for a explanation. It’s not letting me explain here.
5 0
3 years ago
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