Author Question: Place the following events in most likely chronological order: 1. The oxygen content drops enough ... (Read 98 times)

strangeaffliction · **on:** Aug 27, 2018

Place the following events in most likely chronological order:

1. The oxygen content drops enough to kill most animals but not all of the plants.
2. A bunch of inorganic ions were released upstream of a pond.
3. Anaerobic bacteria start to dominate the population of living creatures.
4. Aerobic bacteria start to dominate the population of living creatures.
5. Algae start to dominate the population of living creatures.

A) 2, 5, 1, 4, 3
B) 3, 2, 1, 4, 5
C) 5, 1, 2, 4, 3
D) 2, 4, 1, 5, 3
E) none of the above

Question 2

Group VIIIA of the periodic table contains elements that are gaseous non-metals.

Indicate whether the statement is true or false