Answer:
The rock is 3.75 billion years ago.
Explanation:
Given that:
Half life = 1.25 billion years
1 billion years = 10⁹ years
So,
Half life = 1.25 × 10⁹ years

Where, k is rate constant
So,


The rate constant, k = 5.5452 × 10⁻¹⁰ years⁻¹
Initial amount [A₀] = 80 micrograms
Final amount
= 10 micrograms
Using integrated rate law for first order kinetics as:
![[A_t]=[A_0]e^{-kt}](https://tex.z-dn.net/?f=%5BA_t%5D%3D%5BA_0%5De%5E%7B-kt%7D)
So,





So,
<u>The rock is 3.75 billion years ago.</u>
Answer:
USA PATRIOT Act
Explanation:
Uniting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism (USA PATRIOT) Act of 2001 mains at detecting and punishing the activities of terrorists in and around the United States. The act emphasizes exploring and detecting terrorist acts and scrutinizing them to put an end to such activities. The sources financing such acts are also detected and brought to an end under this act.
Answer:
A. Support for the facts, such as quotes from experts, statistics, photographic proof.
Explanation:
<u>Evidence is proof that tries to confirm that something is true. </u>It is presented as the support for the statement, fact, or belief. It should be something that gives either physical evidence or scientific, like previous academic proofs of something. Depending on the evidence itself, it can be strong and believable, or weak and dubious.
<u>In writing and academic research, evidence can be presented in various forms – previous research, photographs, graphics, historic events, proofs from interviews and questionnaires, etc.</u>
Answer:
Sorcery
Explanation:
Sorcery means the practice or celebration of rituals, prayers or cults with or without the use of charms or talismans (objects to which magical powers are attributed) by occultists in order to obtain results, favors or goals which, as a rule. , are not the will of others. Sorcery can also be defined as an attempt to invoke the supernatural to harm people through thought and emotion without using tangible objects.
Sorcery may be related to cults of the forces of nature or deceased ancestors, and is also often related to the use of arts considered magical, the invocation of entities such as spirits, gods, geniuses or demons, or employment in various forms of divination.