1. Why is iron solid in the inner core but liquid in the outer core?
2. What protects Earth from the Solar Wind?
3. The Earth would by an "Iceball" without which gas trapping heat in the atmosphere?
4. What started making the first oxygen on Earth?
5. What happened 65 million years ago?
6. What was changing rapidly during the Phanerozoic?
7. During the Ordovician, about 444-488 million years ago, what did fish develop?
8. What did the Solar Wind do to the atmosphere of Mars?
9. Does Earth's magnetic field disappear entirely during a reversal? (A reversal is when the field flips and the north magnetic pole becomes a south magnetic pole – like turning over a bar magnet.)
10. Have extinction events been associated with a magnetic field reversal in the past?
11. What happened about 535 million years ago?
12. During what period did most of the coal we use today form?
13. When did the most significant extinction event ever happen?
14. Where did the mineral Iridium, found in rock layers from about 65 million years ago, come from?
15. What are the main causes of the current extinction event?
We are a professional custom writing website. If you have searched a question and bumped into our website just know you are in the right place to get help in your coursework.
Yes. We have posted over our previous orders to display our experience. Since we have done this question before, we can also do it for you. To make sure we do it perfectly, please fill our Order Form. Filling the order form correctly will assist our team in referencing, specifications and future communication.
2. Fill in your paper’s requirements in the "PAPER INFORMATION" section and click “PRICE CALCULATION” at the bottom to calculate your order price.
3. Fill in your paper’s academic level, deadline and the required number of pages from the drop-down menus.
4. Click “FINAL STEP” to enter your registration details and get an account with us for record keeping and then, click on “PROCEED TO CHECKOUT” at the bottom of the page.
5. From there, the payment sections will show, follow the guided payment process and your order will be available for our writing team to work on it.