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4 years ago

Which of these is a disadvantage of hydropower?

Biology

1 answer:

Cerrena [4.2K]4 years ago

3 0

Answer:

Fish populations can be impacted if fish cannot migrate upstream past impoundment

dams to spawning grounds or if they cannot migrate downstream to the ocean. Upstream fish passage can be aided using fish ladders or elevators, or by trapping

and hauling the fish upstream by truck. Downstream fish passage is aided by

diverting fish from turbine intakes using screens or racks or even underwater lights

and sounds, and by maintaining a minimum spill flow past the turbine.

Hydropower can impact water quality and flow. Hydropower plants can cause low

dissolved oxygen levels in the water, a problem that is harmful to riparian

(riverbank) habitats and is addressed using various aeration techniques, which

oxygenate the water. Maintaining minimum flows of water downstream of a

hydropower installation is also critical for the survival of riparian habitats.

Hydropower plants can be impacted by drought. When water is not available, the

hydropower plants can't produce electricity.

New hydropower facilities impact the local environment and may compete with other

uses for the land. Those alternative uses may be more highly valued than electricity

generation. Humans, flora, and fauna may lose their natural habitat.

Hope This Helps! Have A Nice Day!!

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The letter X in the diagram below represents what enzyme used in the process shown?

Anvisha [2.4K]

Answer: Option D. RNA polymerase.

Explanation:

Transcription is the process which is used to produce RNA from a DNA template.
The enzyme involved in the process of transcription is RNA polymerase which is responsible for separating the DNA strands and making an RNA which is complementary to the DNA.
RNA polymerase joins the nucleotides in the newly formed RNA strands by utilizing the energy released from the cleavage of the additional phosphate bonds that are removed by it.
The RNA polymerase dissociates from the DNA only after the process of transcription is complete.

Attached is an image with the correct labeling.

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3 years ago

Body systems work alone to keep the body in a state of homeostasis True or false

Oliga [24]

Answer:

False, the body systems have to work together to maintain homeostasis

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4 0

3 years ago

Read 2 more answers

Starting with the basic building blocks, which is the correct order of levels of

Kruka [31]

Lungs, lung cells, lung tissues

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3 years ago

Lee la siguiente situación, y diseña un experimento. (No tienes que realizarlo)

Lynna [10]

Answer:

- Luis quiere saber si los cristales de yodo pueden disuelverse en distintos líquidos

- Luis necesita cristales de yodo, agua, alcohol y aceite mineral

- La hipótesis de trabajo puede ser: "los cristales de yodo se disuelven en distintos líquidos", con lo cual la hipótesis alternativa indicaría que los cristales de iodo no se disuelven

- La recopilación de los datos puede consistir en la realización de tres experimentos en los cuales los cristales de yodo son sumergidos en agua (1° experimento), alcohol (2° experimento) y aceite (3° experimento).

Explanation:

En el método científico, la pregunta científica refiere a una cuestión particular la cual es planteada con el objetivo de responder algún aspecto particular del mundo real. A partir del planteamiento de una pregunta científica es posible formular dos hipotésis denominadas hipotésis nula e hipótesis alternativa, las cuales representan supocisiones contrapuestas que permiten contestar dicha cuestión. Subsecuentemente, los científicos realizan experimentos y/o observaciones que permiten recopilar datos cuyos resultados son utilizados para confirmar (o rechazar) la hipótesis nula. Por otra parte, es necesario resaltar que durante el proceso de experimentación se requiere de la utilización de controles positivos y negativos que permitirán corroborar si dichos experimentos fueron realizados correctamente.

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3 years ago

The number of individuals that a particular habitat can support with no degradation of that habitat is called _____.

lana [24]

Answer:

carrying capacity (carrying capacity is the total population size that a particular environment can comfortably support with little increase or decrease over a relatively long period of time) given the food, habitat, water e.t.c. that is available in the environment.

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3 years ago