« previous next »

Author Question: As crop residue breaks down, it competes with a growing crop for soil ____; therefore, extra ____ ... (Read 191 times)

Redwolflake15

  • Hero Member
  • *****
  • Posts: 569
on: Jul 21, 2018

As crop residue breaks down, it competes with a growing crop for soil ____; therefore, extra ____ may
  be needed to assure good crop yields.


 
 

a. hydrogen c. nitrogen
  b. carbon dioxide d. oxygen



Question 2

Of the cereal grains grown worldwide, the second-most-important crop is:
 
 

a. wheat c. corn
  b. barley d. rice



mochi09

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 21, 2018
Answer to Question 1

C

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Soil Structures Soil Structures
Transplantation of an extra stomach and length of intestine in a rat. Koopmans (1981) implanted an ... Transplantation of an extra stomach and length of intestine in a rat. Koopmans (1981) implanted an ...
Wind turbines: the fastest-growing energy sector Wind turbines: the fastest-growing energy sector
Soil Conservation: Grassed Waterway Soil Conservation: Grassed Waterway
Differences in yield between two wheat varieties at different soil fertility levels Differences in yield between two wheat varieties at different soil fertility levels
Alpine tundra. Low-growing, hardy plants at a high altitude in Washington’s Cascade range. Alpine tundra. Low-growing, hardy plants at a high altitude in Washington’s Cascade range.
Video: Contraction and Relaxation Animation

For a complete list of videos, visit our video library