A. off a surface at the same angle it strikes the surface
A good title would be "The Cell Membrane: _____" and then insert what type of cell it is in the blank.
Answer:
Access. A basic feature of any greenhouse is access. ...
Vents. One of the first greenhouse features necessary is a means of controlling the climate – most importantly, venting excess heat. ...
Fans. Fans inside a greenhouse are necessary for two basic functions. ...
Rollup Sides. ...
Heaters. ...
Shelves and Benches. ...
Water. ...
Electricity.
Explanation:
theres more but these are the important ones .
An eon is 1.05 billion years and an era is 350 million years
