During which period did mammals first appear?
Earth’s continents are constantly in motion because they sit on top of gigantic plates which float on Earth’s mantle. Energy from the Earth’s core creates convection currents in the molten layer, and the currents move the plates. Over extremely long periods of time, this movement creates new _______.
Coral reefs are unaffected by pollution.
The Earth’s history has had a significant effect on the characteristics of its organisms and biomes. How was the Carboniferous period different from the Devonian period?
How is human impact on the tundra and the rainforests similar?
Which of the following is not a way humans have directly impacted coral reefs?
Biomes on Earth have exhibited changes throughout history that have been caused by a variety of factors. Over the past 50 years, the amount of tropical rainforest acreage found throughout the world has decreased from 14.8 billion acres to 8.6 billion acres due to deforestation. What factor is likely most responsible for the changes observed in the world’s rainforests?
Humans have impacted the rainforests through mining, agriculture, and construction.
Which of the following is not a way humans have impacted the tundra?
Which of the following is a characteristic typically not used to classify biomes?
Did you find these answers helpful?