Hey There,
The answer to your question is option B) Between 200 and 500 million years old.
These rocks are younger than the Earth and also younger than rocks found on continents. (Those rocks are 4-5 billion years old.)
Best Of Luck,
- Kai -
Abrasion is caused by the effects of wind and sand.
Answer:
Glacial retreat occurs when ice melts faster than it forms.
Explanation:
Glaciers are large, slow-moving masses of land ice formed by the recrystallization of snow. For complex reasons, if the worldwide climate becomes cooler, and snow accumulates faster than it melts, the glaciers grow larger and cover more land. 10% of the Earth's surface today is covered by glaciers. Antarctica and Greenland are virtually covered by glaciers. At the height of past glacial ages, 32% of the Earth was covered by glacial ice. Most of Chicago is covered by glacial or glacial-related deposits.
Greenhouse (warm) periods: extensive and prolonged volcanic activity produces excessive carbon dioxide Thus based on above the glaciers have been melted in the recent past and still continue.
Apart from this, the climate will cool again at the end of global warming and climate change. The natural cycle will change and raising the carbon content along with sea levels.
Answer: Based on the provided information, the chemical will help the black walnut trees compete with plants growing nearby By suppressing the growth of the other plants.
What are non toxic chemicals?
Non toxic chemicals can be regarded as these chemicals that are not harmful to the plant.
According to this question, we were informed about Black walnut trees that produce a nontoxic chemical that becomes highly toxic when it is exposed to air or soil.
As a result of this we can see that the growth of other plants will be affected as a result of the chemical by the first plant.
Therefore, option B is correct.
Learn more chemicals at:brainly.com/question/112803
Explanation: