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2 years ago

7

Ocean and freshwater contamination _______. A. Does not affect marine life b. Is not affected by agriculture c. Results from ind

ustrial activity d. Is independent of human activity.

1 answer:

algol [13]2 years ago

3 0

Answer:

c. results from industrial activity

Explanation:

Ocean and freshwater contamination results from industrial activity.

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Although we can divide the history of the universe into many distinct “eras,” sometimes it’s useful just to have a broad perspec

Kitty [74]

Answer:

(A) galaxies formed Sometime after the first five minutes

(B) antielectrons (positrons) as common as electrons Within the first five minutes

(C) photons of cosmic microwave background released Sometime after the first five minutes

(D) temperature fell to 10^15 K(E) strong force and electroweak force first became distinct Within the first five minutes

(F) carbon nuclei formed by fusion Sometime after the first five minutes

(G) inflation occurred Within the first five minutes

(H) star formed Sometime after the first five minutes

5 0

3 years ago

Sarajevo is the Capital of what country

Alex73 [517]

Answer:

D. Bosina and Herzegovina

4 0

3 years ago

A friend tells you he witnessed books and other objects falling off his bookcase during an earthquake. What was the magnitude of

Aleksandr [31]

Answer:

V. Moderate

IV–V falls within the range of

4.0–4.9 so we put at 4.9

Explanation:

This V. Moderate earthquake is the type felt by nearly everyone, with many people awakened. Some dishes and windows are usually broken, and unstable objects are overturned such as books in a bookcase. Pendulum clocks may also stop.

7 0

3 years ago

What observation about this mid-ocean ridge diagram below was used to support Wegener's hypothesis of continental drift?

nata0808 [166]

Answer:

Tectonic plates

Explanation:

is a theory that explains the way the coldest and stiffest outer portion of the lithosphere is structured on Earth

5 0

3 years ago

Match each eon with the appropriate characteristic or event. 1. Hadean eon 2. Archean eon3. Proterozoic eon4. Phanerozoic eona.

Andreyy89

Answer:

1. Hadean eon --- a. formation of the solar system
2. Archean eon --- c. toxic atmosphere; first bacteria
3. Proterozoic eon ---- d. buildup of oxygen; first eukaryote
4. Phanerozoic eon. --- b. current eon

Explanation:

The Hadean Eon represents the formation of the planet that is time before the reliable fossilized record of the life and ended about 4.0 billion years ago. The Archean eon is characterized by the toxic atmosphere and the arrival of the first single-celled organism as bacterial life forms.

The current era dates to the geologic formation of the Phanerozoic eon and covers about 542 million years and the Proterozoic era was the formation of the first oxygen molecules and first Eukaryota.

4 0

3 years ago