The picture below shows a common human activity

what are examples this kind of pollution may cause?
a acid rain, which may cause diseases such as asthma
b global warming, which may cause diseases such as skin cancer
c respiratory diseases such as emphysema
d artificial eutrophication, harming aquatic animals

Found evidence that the continents were joined together at one time.

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.