« previous next »

Author Question: On land, the carbon dioxide used today in photosynthesis to form carbon-containing organic molecules ... (Read 193 times)

waynest

  • Hero Member
  • *****
  • Posts: 553
on: Jul 16, 2018
On land, the carbon dioxide used today in photosynthesis to form carbon-containing organic molecules of plant tissues is mostly returned to the air because of
 
  A) respiration in plants, animals, and organisms in the soil.
  B) plate tectonics.
  C) additional photosynthesis in the same plants.
  D) erosion, decay, and general weathering.

Question 2

Ultimately, the sunlight energy that strikes Earth is
 
  A) eventually lost into space as heat.
  B) stored permanently in molecules that are located deep within the Earth.
  C) stored permanently in minerals and rocks deep within the oceans.
  D) converted to potential energy and stored in animals and plant tissues permanently.


jessicaduplan

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 16, 2018
Answer to Question 1

A

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 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.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

DNA molecules replicate to form identical chromatids DNA molecules replicate to form identical chromatids
Embryonic cells form the placenta Embryonic cells form the placenta
Instructions for Completing the CMS-1500 (02/12) Claim Form Continued Instructions for Completing the CMS-1500 (02/12) Claim Form Continued
A form that the customer should fill out if there is a driveablilty concern to help the service ... A form that the customer should fill out if there is a driveablilty concern to help the service ...
A color-enhanced electron micrograph of circular plasmid molecules A color-enhanced electron micrograph of circular plasmid molecules
Odds please I need it today Odds please I need it today
Video: Exercise and cardiac output & Definition of stroke volume

For a complete list of videos, visit our video library