An ecosystem is a term used by scientists to describe a specific level of organization in an environment. Which of the following lists make up an ecosystem? (AKS 6a)
A soil, air, sunlight, rocks, rain
O B. different populations of wildebeest
O C. leaopards, giraffes, antelope, hyenas
OD. rain, grass, worms, jackals, lions, sunlight

h let me think

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.

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them  

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.