A.Directions: choose the letter of the best answer.Write the chosen letter on the separate sheet of paper.
1.____threatens the stability of our entire planets ecosystem.
a.organism
b.water
c.pollution
d.species

2.As more people move to the beach, the sea turtle population has decreased. Which is more likely the cause of this decrease?
a.warmer temperatures
b.increase in predators
c.habitat loss
d.tropical storm

3.A process by which plants use the sun's energy to make food
a.photosynthesis
b.carnivore
c.organism
d.condensation

4.Changes in the ___can have drastic effects.
a.ecology
b.biotic
c.biotic
d.environment

5.A living part of an ecosystem
a. biotic factor
b.abiotic factors
c.x factor
d.instructor

6.in relation to #5,non living parts pertain to the
a.biotic factor
b.abiotic factors
c.x factor
d.instructor

7.____is the source of all energy on earth and is an important abiotic component on the ecosystem.
a.temperature
b.oxygen
c.heat
d. sunlight

8.A change in any factor, whether living or non-living,will____.
a.affect the ecosystem
b.not affect the ecosystem
c.balance the ecosystem
d.non of the above

9.Which of the following is NOT an abiotic component in the ecosystem?
a.soil
b.temperature
c.water
d.coral

10.Coral bleaching is an effect of climate change and is also known as the increase in which of the following?
a.oxygen in water
b.organism in the water
c. amount of water
d.ocean temperature

11.Water is life because all organisms need water to survive.Water is an
a.biotic factor
b habitat
c.ecosystem
d.aboitic factor

plsss answer this​