Answer:
D
Explanation:
Although natural gas and petroleum are super close, petroleum has increased significantly since the 1950s.
Well there alot of challenges faced by biologist researchers during the research of infectious disease, however major of those include the followings:1- Defining and measuring the fitness for pathogens across the scales2- Developing models to capture the impact of co-infection on the evolutionary process3- Modeling how pathogen characteristics shape the evolution of hose immune diversity4- Understanding the maintenance of pathogen diversity5- Developing the better models for the impact of genetic systems on pathogen evolution .
Hope this helps!
-Payshence xoxo
Compound microscope has a mirror..........
Answer:
Explanation:
About 3% of total water on the earth surface is derieved from fresh water sources.
Given that, the total volume of water on the earth surface = 1,386,000,000km³
Volume of fresh water = 3% x 1,386,000,000
= 41,580,000km³