![domzilla115](/avatars/36098.jpg)
domzilla115
27.08.2019 •
Biology
#1. another name for unicellular organisms that dominated earth up to the precambrian time is a. eukaryotes. b. cyanobacteria. c. stromatolites. d. prokaryotes. #2. the greenhouse effect is related to the phenomenon of an increase in average surface temperature known as a. air pollution. b. agricultural improvement. c. global warming. d. conservation. #3. which colorless and odorless gas, produced by radioactive decay of uranium-238, is considered to be a cancer-causing agent? a. oxygen b. hydrogen c. boron d. radon.#4. scientists can determine if oxygen existed in earth's archean atmosphere by a. determining how many people survived. b. looking for oxidized iron in rocks. c. looking at the amount of salt content in rocks. d. determining the lack of oxidation that occurred.
Solved
Show answers
More tips
- F Food and Cooking The Most Delicious and Simple Fish in Batter Recipe...
- D Dating, Love, Relationships How Long Can Love Last?...
- A Auto and Moto Mastering One-Movement Parking: All You Need to Know...
- C Computers and Internet How to Properly Order Clothing from International Online Stores...
- H Health and Medicine Headache: A Comprehensive Guide to Treatment...
- F Family and Home How to Choose the Best Diapers for Your Baby?...
- A Auto and Moto Discovering the Leader: What is the Most Expensive Car in the World?...
- F Food and Cooking How to Quickly Put your Child to Sleep?...
- C Computers and Internet How to Create a Website for Free and Easy?...
- F Family and Home Parquet or laminate, which is better?...
Answers on questions: Biology
- M Mathematics Anybody wanna chat also whats 20*4...
- C Chemistry Anegatively charged balloon sticks to a door. what is the nature of the charge on the door? a. negatively charged c. conductor b. positively charged d. lacking protons...
- M Mathematics What is the distance of AB rounded to the nearest tenth?...
- M Mathematics Find the volume of a sphere with a surface area of 2916π in2....
Ответ:
The correct answer for question number 2 is C - the greenhouse effect is related to the phenomenon of an increase in average surface temperature known as global warming.
The correct answer for question number 3 is D - the colourless and odourless gas that is produced by the radioactive decay of Uranium-238 and is considered to be a cancer-causing agent is Radon.
The correct answer for question number 4 is B - Scientists can determine if oxygen existed in Earth's Archean atmosphere by looking for oxidized iron in rocks.
Ответ:
cell would not be able to produce protein, got it from google