All categories

2 years ago

During which part of geologic time did photosynthesis evolve?

Computers and Technology

2 answers:

m_a_m_a [10]2 years ago

8 0

During Archean part of geological time photosynthesis evolve.

Nikolay [14]2 years ago

3 0

Answer:B.Archean

Explanatiion : Beginning of the the Archean Eon, was a major time of ocean formation and availability of water molecules which were bonded to hydrogen atoms.

There was a lack of oxygen in the atmosphere eventhough it existed in water molecules. The available organisms were cyanobacteria which were blue- green algae. Eventhough oxygen wasn't there cyanobacteria were able convert sunlight to energy. This is when the photosynthesis took place , when they made their own food in the ocean and they secreted oxygen .

You might be interested in

When planning the structure of a spreadsheet, columns are for _______ items and rows are for _______ items.

lbvjy [14]

I feel like its d the answer

4 0

2 years ago

Read 2 more answers

Peter has recently bought a media player and a digital camera. He wants to buy a memory card for these devices. Which memory dev

Rashid [163]

Flash drive is probably the answer

8 0

2 years ago

Read 2 more answers

Use search engines and websites to research the following WAN technologies to complete the table below:

Yuki888 [10]

Answer:

Explanation:

I am attaching the table as an image with updated table containing required information for the following WAN technologies.

T1/DS1 => Digital Signal 1 (T-Carrier 1),

T3/DS3 => Digital Signal 3 (T-Carrier 3),

OC3 (SONET) => Optical Carrier 3 (Synchronous Optical Networking),

Frame Relay,

ATM => Asynchronous Transfer Mode,

MPLS => Multi-protocol Label Switching,

EPL => Ethernet Private Line.

Although you have mentioned most of the information yourself, there were some wrong data in it. So I have updated them with correct information in the attached table.

4 0

2 years ago

Read 2 more answers

This is a wise and hard question.....What is the hardest question in the world? I know the answer do you?

SpyIntel [72]

Is it this question? I think the hardest question in the world is the one you just asked! Am I right?

8 0

2 years ago

Your network employs basic authentication that centers on usernames and passwords. However, you have two ongoing problems. The f

Agata [3.3K]

Answer:

Using a one time password OTP and using a three factor authentication.

Explanation:

Social engineering is a form system and network attack, drafted by an attacker, to steal user credentials needed for accessing their accounts, to steal information.

Social engineering attacks like phishing, spear phishing, baiting and quid quo pro are used to fool users to giving out their user details.

One time password is an implied use of a password just once and a new password his generated to boost security. In a three factor authentication, OTP can be used as well as biometrics of a user which can not be giving away by a user to an attacker.

8 0

3 years ago