⟩ It is estimated that the temperature of the Earths core is
1. as hot as the surface of the sun
2. much hotter than the surface of the sun
3. much cooler than the surface of the sun
4. it cannot be estimated
Answer: 1
1. as hot as the surface of the sun
2. much hotter than the surface of the sun
3. much cooler than the surface of the sun
4. it cannot be estimated
Answer: 1
Does thermal inversion occur in the winter or in the summer?
What are persistent organic pollutants (POPs)?
Why does thermal inversion increases air pollution? Which harms can thermal inversion cause to humans?
What is transgenic food?
Besides mercury which other heavy metals cause toxic pollution?
Is the upward move of the warm air good or bad for the dispersion of pollutants?
Why transgenics are considered a threat to the environmental safety?
What is plutonium reprocessing? Why is it a big environmental issue?
What is biologic control?
What is bioremediation?