This is true. Not only are the ores extracted, but everything else is removed with them too, which hurts the soil and the environment with it.
From the options given above, the two structures that will provide positive identification of a plant cell under a microscope are CHLOROPLAST AND LARGE CENTRAL VACUOLES.
Plant cells have some cell organelles which is unique to them, these organelles are not found in animal cells. Examples of such organelles are chloroplasts, large central vacuole, cell wall, etc. The chloroplast found in plant cells help the plants to trap energy from the sun during the process of photosynthesis. The large central vacuole found in plants play a critical role in turgor pressure of plants.
The correct answer is "Radio Waves."
The sensors that will provide the best information would be Radio waves.
If the scientist wants to analyze signals from outer that tell her about the age of the universe, the best equipment to do so is Radio waves.
A scientist named Karl Jansky was the first to use radio waves. Today, radio waves help scientists and astronomers to find photons with lesser energy that many times come from the farthest places of the Universe. Current modern telescopes do not have the capacity to see these parts of the Universe and radio waves allow the scientific community to get observe these distant and cold places to do advanced research.
Eliptical (oval shaped), rather than Circular.