Plz asap i will give brainliest,

1. which of the following is an example of chemical weathering?

a stream rounds and smoothes rocks into pebbles.

a growing tree root splits a boulder in two.

freezing and thawing rainwater widens a crack in a sidewalk.

acid rain discolors and disfigures a limestone statue.

2.the sun’s energy hits earth’s surface at the most direct angle at which of the following locations?

equator

south pole

north pole

30° n or s latitude

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

answer: i dont know the answer but this might

explanation:

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warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

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