Question

what impact does melting ice have on ocean water?
a. changes salinity
b. increases freshwater
c. raises land elevation
d. decreases water levels
what is one direct consequence of biodiversity loss?
a. glacial expansion
b. ocean stability
c. algal growth
d. ecosystem disruption

Explanation:

First Question:

To determine the impact of melting ice on ocean water, we analyze each option:

• Option a: Melting ice (freshwater) dilutes ocean water, reducing its salinity. This is a direct impact.
• Option b: While melting ice adds freshwater, the ocean is vast, and "increases freshwater" is not the primary or most specific impact related to ocean water properties.
• Option c: Raising land elevation is not related to ocean water but to isostatic adjustment of land, so incorrect.
• Option d: Melting ice (especially from glaciers and ice sheets) increases ocean water levels, not decreases, so incorrect.

To find the direct consequence of biodiversity loss:

• Option a: Glacial expansion is related to climate change (cooling), not biodiversity loss, so incorrect.
• Option b: Biodiversity loss disrupts ecosystems, which affects ocean stability negatively, not promotes it, so incorrect.
• Option c: Algal growth is more related to nutrient runoff or imbalances, not direct from biodiversity loss.
• Option d: Biodiversity loss means fewer species, disrupted food webs, and ecological processes, leading to ecosystem disruption. This is a direct consequence.

Answer:

a. Changes salinity

Second Question: