Ask question

Ask question

All categories

3 years ago

12

There are four spheres of earth. These include ______, _, and _____. They are important because when th

ey work together they help keep plants and animals alive on earth.

1 answer:

ololo11 [35]3 years ago

4 0

Answer:

"lithosphere" , "hydrosphere" , "biosphere" , "atmosphere"

You might be interested in

When an output gear is larger than the input gear the greater ratio is greater than 1 T or F

bekas [8.4K]

Answer:

T

Explanation:

3 0

2 years ago

A certain working substance receives 100 Btu reversibly as heat at a temperature of 1000℉ from an energy source at 3600°R. Refer

Valentin [98]

Answer:

Explanation:

t1 = 1000 F = 1460 R

t0 = 80 F = 540 R

T2 = 3600 R

The working substance has an available energy in reference to the 80F source of:

B1 = Q1 * (1 - T0 / T1)

B1 = 100 * (1 - 540 / 1460) = 63 BTU

The available energy of the heat from the heat wource at 3600 R is

B2 = Q1 * (1 - T0 / T2)

B2 = 100 * (1 - 540 / 3600) = 85 BTU

The reduction of available energy between the source and the 1460 R temperature is:

B3 = B2 - B1 = 85 - 63 = 22 BTU

6 0

3 years ago

What are the 2 reasons an alignment should be done?

NikAS [45]

Answer:

because it will keep the tires in much better shape and it can improve the handling and keep your car from pulling to one side

Explanation:

5 0

3 years ago

How may a Professional Engineer provide notice of licensure to clients?

azamat

Find full question attached

Answer:

(b) By including a statement that he or she is licensed by the Board for Professional Engineers and Land Surveyors immediately above the signature line in at least 12 point type on all contracts for services

Explanation:

A PE(professional engineer) licensee must show that he is licensed in order to show and ensure public safety as he is qualified for the job he is handling. The California regulations on professional engineers holds that all professional engineers must be licensed by the board of professional engineers and Land surveyors in order to operate legally as an engineer. The engineer may show licensure through the following options:

The engineer might provide statement to each client to show he is licensed which would then be signed by the client

The engineer may choose to post a wall certificate in his work premises to show he is licensed

The engineer may choose to include a statement of license in a letterhead or contract document which must be above the client's signature line and not less than 12 point type

4 0

3 years ago

All circuits need three basic parts: an energy source, wires, and the object that is going to change the electrical energy into

Radda [10]

load every electric circuit,regardless of where it is or how large or small, has four basic parts: an energy source (ac or dc),a conductor (wire), an electrical load (device), and at least one controller(switch)

7 0

3 years ago

Read 2 more answers