1. It contains oxygen which we need to sustain life.
2. The ozone layer protects us from deadly UV rays.
3. The atmosphere makes up the water cycle which makes life sustainable for all living things.
Things that are denser than water sink
Answer:
Constraints:
Funding
Protective equipment
Research
Installation
Criteria
Fertilizers
Rationale:
This is a big deal being that fertilizers are needed to help plants experts are still looking for ways to knock down the amount used.
Which Sub-Problems does this criteria address?
The main environmental problem associated with fertilizer use is contamination of water with nitrates and phosphates. The nitrogen from fertilizers and manures are eventually converted by bacteria in the soil to nitrates. ... High nitrate levels in drinking water are considered to be dangerous to human health.
Criteria:
Human Waste
Rationale:
Human waste is a large problem and the government is trying to stop the public from disposing of it.
Which Sub-Problems does this criteria address?:
Globally, almost 80 percent of the world's wastewater flows back into the ecosystem without proper treatment. This means that almost a quarter of people drink water contaminated with human waste, according to United Nations Water. That incubates deadly diseases, including cholera, dysentery, typhoid and polio.
Criteria:
Oil
Rationale:
Oil is needed for just about everything but it is very costly when it comes to the environment.
Which Sub-Problems does this criteria address?
Oil spills have a devastating effect on the environment, ruining habitats and killing the organisms that live there by sticking to them, destroying their food sources and poisoning them. Additionally, oil hurts the economy by harming the fishing industry, as well as other trades that rely on the ocean.
Explanation:
Answer:
a parenchyma cell 2 mm from the tip of the root
Explanation:
Here I the complete question:
Which of the following cell types retains the ability to undergo cell division?
A) A functional sieve-tube element
B) A tracheid
C) A parenchyma cell 2 mm from the tip of a root
D) A sclereid
E) A stem fiber
Plants cells have all this but the chloroplast is something that only plants cell have