Answer:
I believe the ootion is C
Explanation:
It’s D because obstetrics is the branch of medicine and surgery that is associated with childbirth and the Caden of women giving birth
B, kinesthetic
a is sound
c is visual so like pictures
d is smell
Answer: Ang eleksiyon o halalan (election) ay isang pormal na proseso ng pagpapasiya kung saan ang isang populasyon ay pumipili ng mga indibidwal na hahawak ng isang publikong opisina. Ang mga halalan ang karaniwang mekanismo kung saan ang modernong kinatawan ng demokrasya ay isinasagawa simula ika-17 siglo. Ang mga halalan ay maaaring humalal ng sangay na ehekutibo, mga miyembro ng lehislatura, at minsan ay ng hudikatura gayundin ng mga miyembro ng pangrehiyon at lokal na gobyerno.
HOPE THIS HELPS
The time it takes for 1g of strontium-90 to decay to 250 mg is; 57.6 years
<h3>What is the half life of an element?</h3>
The formula for half life is;
A(t) = A₀ * (¹/₂)^(t/t_1/2)
Where;
A(t) is amount left after t years
A₀ the initial quantity of the substance that will undergo decay;
t_1/2 is the half-life of the decaying quantity.
We are given;
t_1/2 = 28.8 years
A₀ = 1 g
A(t) = 250 mg = 0.25 g
Thus;
0.25 = 1 * (¹/₂)^(t/28.8)
log 0.25 = (t/28.8) log (1/2)
-0.60206 = (t/28.8) * -0.3010
t = 2 * 28.8
t = 57.6 years
Read more about half life at; brainly.com/question/11152793
