The geocentric model of the universe states that the Earth is the center of the universe.
The geocentric model of the universe states that the Earth is the center of the universe. This model was widely believed for many centuries until the heliocentric model proposed by Nicolaus Copernicus was accepted. The geocentric model was based on observations of the apparent movement of celestial objects and was supported by the teachings of ancient Greek philosophers such as Aristotle and Ptolemy.
This model indeed prevailed for centuries in human understanding until the heliocentric model, which placed the Sun at the center, gained acceptance through the work of astronomers like Nicolaus Copernicus and Johannes Kepler. The geocentric model's historical significance and eventual replacement are essential aspects of the history of astronomy and our understanding of the cosmos.
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b.water pollution
c.natural disasters
d.overfishing
Environmental policy addresses all of the following issues except "natural disasters option C is correct.
Natural disasters, such as earthquakes, hurricanes, tornadoes, and floods, are typically considered as separate issues dealt with by emergency response and disaster management agencies.Here is a brief overview of how environmental policy relates to the other issues you mentioned:
a. Air pollution Environmental policies often set standards and regulations to control and reduce air pollution. This includes regulating emissions from industrial sources and vehicles, as well as promoting cleaner energy sources.
b. Water pollution: Environmental policies address the quality of water bodies, regulating pollutant discharges and protecting water resources. This includes measures to prevent contamination from industrial, agricultural, and municipal sources.
d. Overfishing: Environmental policies, such as fisheries management and conservation measures, aim to address overfishing and protect aquatic ecosystems. These policies can include catch limits, fishing season regulations, and marine protected areas.
In addition to these, environmental policy can also encompass a broad range of issues, such as habitat conservation, biodiversity protection, waste management, and climate change mitigation. The overall goal of environmental policy is to balance economic and societal needs with environmental conservation and sustainability, ensuring a healthy and resilient planet for future generations.
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Answer: Option C
Explanation:
The environmental policy addresses all the issues related to the environment which occurs due to human interventions into the environment.
The environmental issues like air pollution, over fishing, air pollution are caused due to human interventions.
The natural disaster is caused by natural causes not due to human interventions. So, environmental policy does not addresses natural disasters.
10%
90%
100%
Answer: The correct answer is 1%.
In a food chain, only 1% to 2 % of the total available solar energy is transferred to the producers. The rest 98% to 99% of the solar energy is reflected by the leaves and other surfaces on earth, which is then absorbed by some other materials that convert it into heat.
Thus, 1% solar energy is available to the producers in order to synthesize their food in the process called photosynthesis.
Answer:
The correct answer would be nonsence mutation.
It is a type of point mutation in which an amino acid coding codon is converted into a stop codon.
It results in the termination of a premature polypeptide chain.
For example, the mutation of codon third GCT into ACT in which guanine is replaced with adenine.
DNA template strand 3' - TAC TGA GCT GTG GCT CGC TCG ACT - 5'
mRNA sequence 5' - AUG ACU CGA CAC CGA GCG AGC UGA- 3'
Amino acid sequence Met Thr Arg His Arg Ala Ser Stop
Mutated DNA template strand 3'-TAC TGA ACT GTG GCT CGC TCG ACT -5'
mRNA sequence 5'- AUG ACU UGA CAC CGA GCG AGC UGA-3'
Amino acid sequence Met Thr Stop
The type of mutation that always creates a stop codon is a nonsense mutation.
Nonsense mutations are point mutations that result in the conversion of a codon that encodes an amino acid into a premature stop codon. A stop codon is a specific sequence of three nucleotides (either UAA, UAG, or UGA) that signals the termination of protein synthesis during translation.
When a nonsense mutation occurs, it leads to the premature termination of the protein synthesis process, as the ribosome encounters the stop codon and stops the translation prematurely. As a result, the protein synthesized from the mutated gene is truncated and typically nonfunctional.
Nonsense mutations can arise from various genetic alterations, such as single nucleotide substitutions, insertions, or deletions. The resulting premature stop codon can lead to the production of a truncated protein or the degradation of the mRNA molecule through a process called nonsense-mediated mRNA decay (NMD).
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