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3 years ago

Mine reclamation involves reopening a mine that was previously thought to be void of useful minerals. True False

Biology

2 answers:

charle [14.2K]3 years ago

7 0

Answer: False

Mining is a process that involves the displacement of large amount of soil and rocks from a region in order to excavate valuable minerals and resources. It results in environmental degradation as it disturbs the natural habitat of living species, contaminate natural resources like air and water. Mine reclamation is a process of restoring the land where, mining took place. This is done by completely filling up the mining site with piles of soil, afforestation(planting trees), using land for agriculture purpose to minimize the environmental impacts such as erosion of soil, loss of native biodiversity and others.

diamong [38]3 years ago

6 0

The answer is false hope i helped you :)

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Based on your observations, which way does earth rotate—from east to west, or west to east? Explain your answer.

JulijaS [17]

Based on my observations, the earth rotates from west to east about the axis of rotation. The counter-clockwise rotation of the earth is as viewed from the North Pole star Polaris.

My observations supporting the counter-clockwise rotation of the earth are:

The Sun rises in the east and sets in the west.

All celestial objects including the stars and the moon rise in the east and set in the west.

The rotation is the result of the strong geomagnetic field of the earth. It is also responsible for the formation of day and night on the planet.

Learn more about the Rotation of the earth:

brainly.com/question/24246687

6 0

1 year ago

Choose the right answer pls

Nookie1986 [14]

Answer:

1.1st one

2.3rd one

Explanation:

thanks

8 0

3 years ago

Read 2 more answers

imagine a cell-surface receptor protein is being newly synthesized. How can it get into the membrane that it will ultimately be

motikmotik

Answer:

the steps for a new receptor synthesis:

Explanation:

Do not forget the steps vary from an eukarityc cell to prokarityc one.

IN AN EUKARYOTIC CELL:

1- Transcription: in the nucleus, mRNA is synthesized from the DNA sequence that codifies the protein. Exons are spliced if needed by spliceosomes.

2- From nucleus into cytoplasm: mRNA goes through nuclear membrane into the cytoplasm were ribosomes, substrates for protein synthesis and other organelles are.

3- Ribosomes recognize a signal in mRNA and start reading the genetic code, three consecutive nucleotides at a time and adjust the correspondent tRNAs (tRNAs carry the aminoacids)

4- Peptide bonds are formed between consecutives aminoacids, and a polypeptide is build up according to the mRNA sequence.

5- (The mRNA has a signal that is recognized by the rough endoplasmic reticulum) The peptide goes into this reticulum (RER) and then into Golgi apparatus. (more chemical modifications are made if needed). By this moment the protein has an inserted portion in a lipid membrane.

6- The protein is transported in a vessel that finally fusions with cytoplasmic membrane and the receptor is in destiny. Hydrophobic aminoacid sequences are inserted in membrane.

IN A PROKARYTIC CELL:

1- Transcription (no splicing is needed, there are not exons)

2- There are not nucleus and cytoplasm divided (no transport)

3- Ribosomes recognize a signal in mRNA and start reading the genetic code, three consecutive nucleotides at a time and adjust the correspondent tRNAs (tRNAs carry the aminoacids)

4- Peptide bonds are formed between consecutives aminoacids, and a polypeptide is build up according to the mRNA sequence.

5- The mRNA has a signal that is guides the growing protein to cellular membrane. Hydrophobic aminoacid sequences are inserted in membrane.

8 0

3 years ago

According to the principle of _______, a change in one species in a community results in a change in another.

Monica [59]

The correct answer is coevolution.

The term is used to illustrate the conditions where two or more species communally influence each other’s evolution. For example, an evolutionary modification in the morphology of a plant may influence the morphology of a herbivore that consumes it, this, in turn, may influence the evolution of the plant that might influence the evolution of the herbivore and so on.

Coevolution most possibly takes place when distinct species have a close ecological association with each other. These ecological associations include parasite/host and predator/prey, mutualistic species, and competitive species.

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4 years ago

while gazing into an aquarium, you see bubbles from an aquatic plant. What is the name of this effect?

liraira [26]

Hydrophonic plants are plants that is living in the lands, and obviously the aquatic plants that are typically used to style aquariums. However, the bubbles you can perceive in an aquatic plant can perhaps be a source of oxygen which is recognized as one of the products of plants as well as human respiration. The bubbles are oxygen and are created from the thylakoid membrane in the chloroplast over photosynthesis.

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3 years ago