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2 years ago

In 2009 an explosive eruption covered the island of Hunga Ha'apai in black volcanic ash. What type of succession is this?

Engineering

1 answer:

dangina [55]2 years ago

8 0

Answer:

The type of succession is:

Primary succession

Explanation:

This is a type of succession that occurs after a volcanic eruption or earthquake; it involves the breakdown of rocks by lichens to create new, nutrient rich soils.

Primary succession is one of the two types of succession we have. It begins on rock formations, such as volcanoes or mountains, or in a place with no organisms or soil.

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Electrical circuits must be locked-out/tagged-out before electricians work on any equipment. Is this true or false?

dybincka [34]

Answer:

true

Explanation:

Equipment that are "locked-out/tagged-out" prevent the electrician from being electrocuted or attaining a serious injury in relation to it. Locking out an equipment prevents it from releasing its energy because such energy can be hazardous to the electrician. There are instances when the equipment accidentally starts up, thus, it is essential that the equipment's source of energy is isolated.

8 0

2 years ago

Make a proposal to add a small pizza shop to a historical part of town. How could it be designed to “fit” into the area?

spin [16.1K]

It could be designed because if we had a small little pizza shop it would save our problems of going through all the trouble just for pizza

7 0

2 years ago

Read 2 more answers

Chọn dữ liệu phù hợp và biểu diễn chúng dưới dạng biểu đồ, từ đó cho biết 3 yếu tố

frutty [35]

Answer:

Please explain it in English so that i can help you or you need someone who can speak Vietnam help you

5 0

2 years ago

Subcooled liquid water flows adiabatically in a constant diameter pipe past a throttling valve that is partially open. The liqui

Llana [10]

Answer:

hi-he = 0

pi-pe = positive

ui-ue = negative

ti-te = negative

Explanation:

we know that fir the sub cool liquid water is

dQ = Tds = du + pdv ............1

and Tds = dh - v dP .............2

so now for process of throhling is irreversible when v is constant

then heat transfer is = 0 in irreversible process

so ds > 0

so here by equation 1 we can say

ds > 0

dv = 0 as v is constant

so that Tds = du .................3

and du > 0

ue - ui > 0

and

now by the equation 2 throttling process

here enthalpy is constant

so dh = 0

and Tds = -vdP

so ds > 0

so that -vdP > 0

as here v is constant

so -dP =P1- P2

so P1-P2 > 0

so pressure is decrease here

5 0

2 years ago

How does sea navigation work?

ahrayia [7]

Answer:

a clock

Explanation:

you use a clock in water

3 0

2 years ago