The last time carbon dioxide (CO2) levels were as high as today was over 3 million years ago during the Pliocene epoch. At that time, global temperatures were 2
Read more
Health
When you look at objects under high magnification what happens to the brightness?Asked by AnonymousWhen
observing objects under high magnification,
lanciao the brightness of the image may
decrease due to the limited amount of light entering the microscope objective.
Read more
Health
What species do modern human beings fall into?Asked by AnonymousModern human beings belong to the species Homo sapiens.
Astro Photo
검색 
전체메뉴