Why are producers important to food webs? A. They are the largest organisms in the ecosystem.
B. They are the smallest organisms in the ecosystem.

C. They use the sun′s energy to complete photosynthesis and transfer the energy to consumers.

D. They use the sun′s energy to grow, and block out the sunlight for consumers and decomposers.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

the answer to this question is 3.

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.

it is stable as it is in group 0 which have full outer shells of electrons