<span>An estuary is found at one end of a river delta wherein the freshwater from the river meets the saltwater from the ocean. It forms a transition zone between river environments to maritime environments. </span>I hope my answer has come to your help. God bless and have a nice day ahead!
<span>The rock layers must have formed at different times because they contain two different biozones.
The rock layer containing the trilobites must have formed before the one containing the ammonites.
The key thing to note here is that the Trilobites only lived from 540 to 248 million years ago. And that the Ammonites were from 245 to 65 million years ago. So there's a 3 million year gap between these 2 different creatures where neither of them existed. So the dig where the trilobites were found has to be at least 3 million years older than the dig where the Ammonites were found. So with that in mind, let's look at the options and see what makes sense.
The rock layers must have formed at the same time because they both contain biozones.
* This is nonsense no matter what dates you're speaking of. In effect it claims that all rocks that indicate life were created at the same time. So this is definitely a bad choice.
The rock layers must have formed at different times because they contain two different biozones.
* This is technically incorrect since it assumes that all biozones represent an unique period of time which is incorrect. However, since the biozones represented by the presence of Trilobites and Ammonites don't overlap, it is true that these these rock layers were formed at different times. I would have preferred if this option said "non overlapping biozones". But on the balance, I'd consider this option to be true, so it should be selected.
The rock layer containing the trilobites must have formed before the one containing the ammonites.
* This is definitely true since the last Trilobite died about 3 million years before the first Ammonite lived. So this is a correct choice.
The rock layer containing the trilobites must have formed after the one containing the ammonites.
* This is the opposite of the previous option. And since the previous option was true, this option must be false. So this is a bad choice.</span>
Answer:
ሰላም!
the Challenges and Opportunities on industrial development in Ethiopia are:-
The major ones include unskilled labor forces with limited experience; limited infrastructure; external pressure from global market, shallow industrial research and development activities, underdeveloped market information system, problems related to trade logistics and limited promotion made on the resources
In Europe, communism did fall.
1. The Solidarity movement in led by ousting the communist government.
2. Other communist nations quickly followed by booting the government out, including: Hungary, Czechoslovakia, East Germany, and Romania.
3. The symbol of the Cold War was the Berlin Wall. In December of 1989, the wall came down after 45 years.
4. Even larger, the U.S.S.R. broke apart.
<span>1. Gorbachev's glasnost and perestroika were opening things up within the Soviet Union. </span>
2. Soviet hardliners tried a military ouster of Gorbachev. Russian president Boris Yeltsin helped stop the coup attempt.
<span>3. Gorbachev later resigned in 1991 and the U.S.S.R. busted up into 15 independent republics. These were loosely united in what was called the "Commonwealth of Independent States." Gorbachev's legacy would be that he tore down the old communistic Soviet structure. </span>
<span>5. The message seemed clear: the Cold War was over, the democracies had won and communism had lost. Bush spoke of a "new world order" where democratic republics would negotiate rather than fight. </span>
<span>The United States with the fall of the USSR: With the Cold War over, military cuts were made. 34 military bases were closed, a $52 billion order for navy attack planes was canceled, defense plants closed. </span>
chemical weathering of rocks on the continents is one source of elements found in sea water.
