The Correct answer is A.
As snow becomes compressed , air between the flakes gets trapped. The process involving trapping of air occurs during burial of snow layers and is generally not complete until the bubbles are about 60 meters or more below the surface.
Once the bubbles have formed, they act as the time capsules of the atmosphere when they were trapped. By extracting the air from the bubble in ice cores, changes in the past can be studied .
Studies of these changes show the dramatic increase of what are called greenhouse gases such as carbon dioxide, caused by human use of fossil fuels, as well as natural changes that accompany glacial climate
Answer:
The food particles are then engulfed by phagocytosis, forming a food vacuole. Lysosomes then fuse with the food vacuole. ... Most ciliates also have one or more large contractile vacuoles, which collect water and expel it from the cell to maintain osmotic pressure.
Explanation:
C.the single cell divided to form two new cells, and the two new cells each divided to form four total cells, all by asexual reproduction.
The deeper the depth, the lower the temperature, and the higher the pressure.
Environmental science is the study of interactions among the physical, chemical and biological components of the environment. Environmental science enlightens us on how to conserve our environment in the face of increasing human population growth and anthropogenic activities that degrade natural resources and ecosystems.
