B. Protostome development
Answer:
a
Explanation:
because I have had this question
Answer:
This sentence is FALSE: <em>The study of environmental science must involve discussion of human culture and people's opinions on politics and economics.</em>
→ The study of environmental science involve the natural components of Earth and also the connections between them.
Answer:
A. It can be used to grow food in areas with a shortage of land.
Explanation:
Answer:
The most abundant gas in the atmosphere is nitrogen, with oxygen second, and argon as third.
Explanation:
The atmosphere contains many gases, most in small amounts, including some pollutants and greenhouse gases. The gases whose percentages do not change from day to day are nitrogen, oxygen and argon. Nitrogen accounts for 78% of the atmosphere, oxygen 21% and argon 0.9%. Usually, the 4 most abundant gases are:
Nitrogen (N2) - 78.084%
Oxygen (O2) - 20.9476%
Argon (Ar) - 0.934%
Carbon dioxide (CO2) 0.0314%
