Which statements describe effects of large asteroid and comet impacts? check all that apply.
1. they may cause extinction.
2. they may cause small craters on earth’s surface.
3. they may cause changes limited to within the crater.
4. they may kick up dust and pollute earth’s atmosphere.
5. they may cause organisms and populations to die.

2,3,5

Explanation:

A, D and E

Explanation:

the match duh

explanation:

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.