Ural Mountains and Caucasus Mountains.
Answer:
Just highlight the important points in your book because this will save your time and you don't have to copy it twice in the notebook
Answer:
All issues are related to each other.
Explanation:
- Environmental issues like Biodiversity and genetic modification related to the alterations in the genetic makeup of species richness on earth. Biodiversity today faces a challenging situation where the loss of habitats and modification of the environment takes place that leads the species to adapt fast to the next environment. Either by natural selection or genetic drift.
- Deforestation is the complete removal or clearance of forest land by man for construction or development purposes, which leads to the development of desertic conditions over the natural landscape as trees hold the soil by roots from getting blown away.
- Global warming and ozone layer depletion, both causes of man-made anthropogenic wastes and harmful gases that warm and destroy the upper atmosphere and raise the temperature of the world's oceans and water levels.
They are; if u divide both integers in the second ratio by three, u get 5:9.
hope this helps (;
Answer:
150 million years old
Explanation:
If we have an isotope that has a half-life of 50 million years, we need just need to divide the numbers in order to get to one eight of the full number, than multiply it by 50 million in order to get the result.
If one half is 50 million years, than dividing one more half, which will gives one fourth of the total, will brings us to 100 million. Dividing the one fourth by two will leads to the one eight of the full number, and adding 50 million more years, we get 150 million years. So the rock in question has 150 million years of age.
