Answer:
There are an estimated over 10,000 bird species that exist in our world
Explanation:
The most notable types include humming birds, which have incredibly fast heart beats of up to 1,260 beats per minute.
There are also a group of birds that are flightless and cannot fly, which include Ostriches, which are also the tallest and heaviest living birds. In fact an ostrich is the closest ancestor to a Tyrannosaurus Rex.
Overall, there are many amazing birds out there! Hope this helped a little!
Http://history-world.org/islam.htm
This site will provide information, but it changed the entire social order and beliefs, customs and culture of the people.
Weather affects how we dress for the day, our activities, how our food grows, and our health.
Answer:
B. greater than
Explanation:
Air pressure decreases as the altitude increases.
Air pressure increases as the altitude decreases.
This means that if the air pressure of Denver, Colorado, at an altitude of about 5,000 feet above sea level, is 840mb, the sea-level pressure reported for Denver will be greater than 840 mbb.