Vertical-horizon.
If neither of them are it then it’s columns
Please be specific. Which umbrella?
Answer:

Explanation:
Given that:

From equation (3) , multiplying (-1) with equation (3) and interchanging reactant with the product side; we have:

Multiplying (2) with equation (4) ; we have:

From equation (1) ; multiplying (-1) with equation (1); we have:

From equation (2); multiplying (3) with equation (2); we have:

Now; Adding up equation (5), (6) & (7) ; we get:



<u> </u>

<u> </u>
<u />
(According to Hess Law)


The six basic elements of weather include temperature, humidity, atmospheric pressure, wind, precipitation, and cloudiness.
~I knew this was asked 5 days ago, but I hope this still helps.
Bacteria --> corn --> mouse --> hawk