Hello can sombody please check my answers?

1) Which activity might reduce habitat loss?(1 point)
A replacing golf courses with farms
B draining a wetland to plant fruit trees
C removing invasive speices
D spreading out the human population****

2) What effect do algae blooms have on ocean ecosystems?(1 point)
A increased underwater plant population
B increased fish population
C decreased carbon dioxide in the water****?
D decreased oxygen in the water

3) Which of the following do researchers think is a primary factor in the decrease of North American bird populations?(1 point)
A Decreased hunting of predator species
B Changes in farming practices such as draining wetlands and pesticide use****
C Recreational hunting of bird species such as waterfowl
D A decrease in conservation efforts

4) The cones of lodgepole pine trees release their seeds when exposed to heat. Which abiotic event may benefit this plant?(1 point)
A flood
B fire****
C tornado
D drought

5) Jellyfish compete with anchovies for plankton and are preyed upon by tuna and swordfish. Which change might benefit jellyfish?(1 point)
A increase in tuna
B increase in plankton****
C increase in swordfish
D increase in anchovies
Thank you!