1 you run out of fuel 2 it takes a long time 3 it’s hard to get back 4 the conditions are constantly changing making it harder to predict what could happen. Look at Apollo 12 as a example
Answer: check below
Carbon dating is accurate only for objects less than 60,000 years old. Use the idea of half-life to explain this limitation. (1 point) Hint Carbon-13’s half life is 6,000 years
Explanation:
HOpe helps
:3
The answer is the origin
of replication. This is where the replication bubble is formed. Two opposite replication
forks (Y-shaped regions) of DNA are formed when
the double helix is unzipped by DNA helicases. Transcription factors, polymerase III and primer then bind to the region
to begin transcription.
Answer:
The correct answer is: (A).
Explanation:
- In the question, it is mentioned that the algae can grow under the conditions of "enough sunlight" and "enough nutrients".
- Sunlight reaches the algae, by first falling on the surface made up of ice and snow and then refracting from there into the top layer of the ice where the algae grows.
- However, the capability of both snow and ice to reflect sunlight is far more than that of refracting sunlight.
- Therefore, the amount of light received by the algae is similar in absence or presence of the layer of snow on the top layer of ice.
- However, on deposition of snow on the layer of the ice, the weight of the ice increases and it sinks below into sea water.
- This allows more nutrient rich sea water to percolate into the ice and reach the algae.
- The algae receive more nutrients from the sea water and hence is capable undergoing better metabolism and growth.
- Hence, more algae are produced under such a situation.
