« previous next »

Author Question: Which of the following contributes least to the problem of photochemical smog? A) nitrogen oxides ... (Read 43 times)

ericka1

  • Hero Member
  • *****
  • Posts: 544
on: Aug 27, 2018
Which of the following contributes least to the problem of photochemical smog?
 
  A) nitrogen oxides emitted by cars
  B) hydrocarbons emitted by cars
  C) warm, sunny days
  D) cool, wet days

Question 2

Running an engine with a richer (more fuel, less air) combustion mixture lowers nitrogen oxide emissions from automobiles. The problem is that
 
  A) hydrocarbon emission increases.
  B) carbon monoxide emission increases.
  C) fuel efficiency decreases.
  D) all of the above occur.


leahm14

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

Asthma cases in Americans are about 75% higher today than they were in 1980.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Sulfides, Oxides, and Carbonates Sulfides, Oxides, and Carbonates
How to solve a word problem involving trigonometric models (Question 2) How to solve a word problem involving trigonometric models (Question 2)
Soil is a crucial part of the nitrogen cycle Soil is a crucial part of the nitrogen cycle
Problem Problem
Problem Problem
linear programming problem, applying simplex method and sensitivity analysis linear programming problem, applying simplex method and sensitivity analysis
Video: Fermentation - When Oxygen Is Absent, Pyruvate to Lactate & Pyruvate to Ethanol

For a complete list of videos, visit our video library