Match these up
1. human sewage
2. limiting nutrient
3. dead organisms and solid waste
4. human activity
5. 80% of air

a. can cause eutrophication
b. nitrogen gas
c. account(s) for even more production of nitrogen than nature does
d. amount available can determine how fast growth happens.
e. contain(s) nitrogen compounds that are converted by bacteria to ammonia

Asap timed! 1. ice core samples from glaciers ice caps contain bubbles of ancient atmosphere that are in layers based on age. what questions are scientists most interested in? a. how the amount of water vapor needed to make the ice has changed b. how the amount of ozone has changed over time. c. how the amount of ice in each layer has changed over time d. how the amount of carbon dioxide has changed over time 2. what produces milankovich cycles ? a. sunspots ams solar flare on the suns surface b. changes in the earths orbit c. gravitational changes bases on the position of the sun and the moond. cycles of vegetation that result in desert and rainforest conditions

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated

What are levels of ecology and how can we remember them