(c) State and explain the wo the three agents of pollution.
á Distinguish between external and internal fertilization and give two examples of each,
7. Explain why? (a) it is possible for a person to swallow something while standing on his head
(b) one does not urinate frequently on a hot day
8. Briefly explain how the following illustrates osmosis:-
(a) Busting of red blood cell when immersed in dilute solution
(b)Shrinking of a cell when immersed in a high concentrated solution
Explain why fish dies when taken out of water to land while frog survive in other water and land?
10. What are the risky situations, behaviors and practice of STI, STD, HIV and AIDS diseases

zoophiluos flower: the pollinating agents are animals like human being

anemophilous flower: these are agency pollinated by wind

entomophilic flowers : these are flowers pollinated by insects

humans can cause extinction of a species through overharvesting, pollution, habitat destruction, introduction of invasive species (such as new predators and food competitors), overhunting, and other influences. explosive, unsustainable human population growth is an essential cause of the extinction crisis.

explanation:

i didn't have the answer choices , but i tried my best.

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation: