The answer is A. Pollutant
A I believe because cars produce a lot of gas contributing to global warming
They are the opposite of each other.
Photosynthesis requires carbon dioxide and releases oxygen, Cellular respiration requires oxygen and releases carbon dioxide.
Answer:
nitrogenous bases from the cytoplasm link up with an exposed complementary base
Answer:
Rock
Explanation:
Minerals are inorganic substances that occur naturally in nature and have a
a definite chemical composition and a crystalline structure while rocks may consists of one or many minerals together along with some organic remains due to which it may not look shiny and crystalline from outside.
Here, the two characteristics that enable the reader to identify the object given by grandmother to Emily as rock are –
a) Looks ugly on the outside (shows the presence of organic matter)
b) solid purple color with pretty crystals (crystalline structure inside)
