Which of these statements are true?
A. There is more water on Earth now than there was millions of years ago.
B. There is less water on the Earth than there was millions of years ago.(MY ANSWER)
C. There is no way to tell how much water there was on Earth millions of years ago.
D. There is the same amount of water on the Earth now than there was millions of years ago.
Why do you think there is less water now?
I think its B,is this correct??
To determine which statement is true, we need to consider scientific knowledge about the Earth's water cycle and the geological history of our planet. Here's how you can arrive at the correct answer:
A. There is more water on Earth now than there was millions of years ago.
To assess the validity of this statement, we can consider the water cycle, which involves a continuous circulation of water on Earth. However, the overall amount of water on Earth remains relatively constant throughout this cycle. Thus, it is unlikely that there is more water on Earth now than there was millions of years ago.
B. There is less water on the Earth than there was millions of years ago.
This statement is plausible. Geological evidence suggests that water levels on Earth have fluctuated over long periods of time due to various factors such as tectonic activity, sea level changes, and climate variations. Changes in water distribution, such as the formation of ice caps or the drying of certain areas, may have led to a decrease in the overall amount of water on Earth compared to millions of years ago.
C. There is no way to tell how much water there was on Earth millions of years ago.
This statement is not accurate. While it is challenging to determine precise measurements of water quantities from millions of years ago, scientists employ various methods to estimate historical water levels. They examine geological records, sediment compositions, isotopic analysis, and other indicators to infer past climate conditions, sea levels, and the distribution of water on Earth.
D. There is the same amount of water on the Earth now than there was millions of years ago.
This statement is unlikely to be true, as it disregards geological evidence indicating changes in water distribution throughout Earth's history. As mentioned before, geological processes and long-term climate variations can lead to fluctuations in the overall amount of water on our planet.
Based on this assessment, your answer (B. There is less water on the Earth than there was millions of years ago) appears to be the most accurate and aligned with scientific understanding.