What is the largest source of sulfur dioxide air pollution?
a.
transportation
b.
the greenhouse effect
c.
burning fossil fuels in vehicles, power stations, and factories
d.
construction, agriculture, and unpaved roads

c. burning fossil fuels in vehicles, power stations, and factories

Explanation:

The sulfur dioxide is one of the biggest polluters of the atmosphere. The main sources of this pollution are from burning the fossil fuels such as coal, oil, and natural gas, where the sulfur dioxide is released as a waste product from their burning. This gas is actually very toxic, and it is the main cause why there's an ever increasing occurrence of acid rains. The sulfur dioxide manages to mix with the water vapor in the formation of the clouds, and when the rain falls it contains sulfur dioxide as well. This causes lot of damage to plants, erodes the infrastructure, as well as harming the respiratory systems of the animals and the humans.

c

Explanation:

answer: angiosperms

dicots

angiosperms are highly evolved plants, they produce seeds which are enclosed within in a carple. these are the largest group of plants on earth. they include trees, shrubs, herbs and small flowering plants. angiosperms exhibit a flowering stage in their life cycle. the flower serves the function of reproduction and fruit formation in majority of angiosperms. dicot is the term used to describe flowering plants that have two seed leaves. dicots are plants which develop seeds which split into two parts called cotyledons. each cotyledon contains one embryo.

here, a small purple flower development indicates that the plant belongs to angiosperms and having two embryonic leaves indicates it belongs to dicots.  

the answer is :